11.8 Exercise supplement

${\displaystyle 6a-2b+5c}$

${\displaystyle 9x-6y+1}$

${\displaystyle 7m-3n}$

${\displaystyle -5h+2k-8+4m}$

${\displaystyle x+2n-z}$

${\displaystyle y-5}$

${\displaystyle -y-3z}$

${\displaystyle -a-b-c-1}$

${\displaystyle -4}$

${\displaystyle -6}$

Write ${\displaystyle 1k}$ in a simpler way.

Write ${\displaystyle 1x}$ in a simpler way.

In the expression ${\displaystyle 7r}$ , how many ${\displaystyle r}$ ’s are indicated?

In the expression ${\displaystyle \text{12}m}$ , how many ${\displaystyle m}$ ’s are indicated?

In the expression ${\displaystyle -5n}$ , how many ${\displaystyle n}$ ’s are indicated?

In the expression ${\displaystyle -\text{10}y}$ , how many ${\displaystyle y}$ ’s are indicated?

${\displaystyle 5a-2s}$ , if ${\displaystyle a=-5}$ and ${\displaystyle s=1}$

${\displaystyle 7n-3r}$ , if ${\displaystyle n=-6}$ and ${\displaystyle r=2}$

${\displaystyle 9x+2y-3s,}$ if ${\displaystyle x=-2}$ , ${\displaystyle y=5}$ , and ${\displaystyle s=-3}$

${\displaystyle \text{10}a-2b+5c}$ , if ${\displaystyle a=0}$ , ${\displaystyle b=-6}$ , and ${\displaystyle c=8}$

${\displaystyle -5s-2t+1}$ , if ${\displaystyle s=2}$ and ${\displaystyle t=-2}$

${\displaystyle -3m-4n+5}$ , if ${\displaystyle m=-1}$ and ${\displaystyle n=-1}$

${\displaystyle m-4}$ , if ${\displaystyle m=4}$

${\displaystyle n=2}$ , if ${\displaystyle n=2}$

${\displaystyle -x+2y}$ , if ${\displaystyle x=-7}$ and ${\displaystyle y=-1}$

${\displaystyle -a+3b-6}$ , if ${\displaystyle a=-3}$ and ${\displaystyle b=0}$

${\displaystyle 5x-4y-7y+y-7x}$ , if ${\displaystyle x=1}$ and ${\displaystyle y=-2}$

${\displaystyle \mathrm{2a}-\mathrm{6b}-\mathrm{3a}-a+\mathrm{2b}}$ , if ${\displaystyle a=4}$ and ${\displaystyle b=-2}$

${\displaystyle a^2-6a+4}$ , if ${\displaystyle a=-2}$

${\displaystyle m^2-8m-6}$ , if ${\displaystyle m=-5}$

${\displaystyle {4y}^2+3y+1}$ , if ${\displaystyle y=-2}$

${\displaystyle {5a}^2-6a+\text{11}}$ , if ${\displaystyle a=0}$

${\displaystyle -k^2-k-1}$ , if ${\displaystyle k=-1}$

${\displaystyle -h^2-2h-3}$ , if ${\displaystyle h=-4}$

${\displaystyle \frac{m}{6}+5m}$ , if ${\displaystyle m=-\text{18}}$

${\displaystyle \frac{a}{8}-2a+1}$ , if ${\displaystyle a=\text{24}}$

${\displaystyle \frac{5x}{7}+3x-7}$ , if ${\displaystyle x=\text{14}}$

${\displaystyle \frac{3k}{4}-5k+\text{18}}$ , if ${\displaystyle k=\text{16}}$

${\displaystyle \frac{-6a}{5}+3a+\text{10}}$ , if ${\displaystyle a=\text{25}}$

${\displaystyle \frac{-7h}{9}-7h-7}$ , if ${\displaystyle h=-\text{18}}$

${\displaystyle 5\left(3a+4b\right)}$ , if ${\displaystyle a=-2}$ and ${\displaystyle b=2}$

${\displaystyle 7\left(2y-x\right)}$ , if ${\displaystyle x=-1}$ and ${\displaystyle y=2}$

${\displaystyle -\left(a-b\right)}$ , if ${\displaystyle a=0}$ and ${\displaystyle b=-6}$

${\displaystyle -\left(x-x-y\right)}$ , if ${\displaystyle x=4}$ and ${\displaystyle y=-4}$

${\displaystyle (y+2{)}^2-6(y+2)-6}$ , if ${\displaystyle y=2}$

${\displaystyle (a-7{)}^2-2(a-7)-2}$ , if ${\displaystyle a=7}$

${\displaystyle 4a+5-2a+1}$

${\displaystyle 7x+3x-\text{14}x}$

${\displaystyle -7b+4m-3+3n}$

${\displaystyle -9k-8h-k+6h}$

${\displaystyle -x+5y-8x-6x+7y}$

${\displaystyle 6n-2n+6-2-n}$

${\displaystyle 0m+3k-5s+2m-s}$

${\displaystyle \mid -8\mid a+\mid 2\mid b-\mid -4\mid a}$

${\displaystyle \mid 6\mid h-\mid -7\mid k+\mid -\text{12}\mid h+\mid 4\mid \cdot \mid -5\mid h}$

${\displaystyle \mid 0\mid a-0a+0}$

${\displaystyle x+1=5}$

${\displaystyle y-3=-7}$

${\displaystyle x+\text{12}=\text{10}}$

${\displaystyle x-4=-6}$

${\displaystyle 5x=\text{25}}$

${\displaystyle 3x=\text{17}}$

${\displaystyle \frac{x}{2}=6}$

${\displaystyle \frac{x}{-8}=3}$

${\displaystyle \frac{x}{\text{15}}=-1}$

${\displaystyle \frac{x}{-4}=-3}$

${\displaystyle -3x=9}$

${\displaystyle -2x=5}$

${\displaystyle -5x=-5}$

${\displaystyle -3x=-1}$

${\displaystyle \frac{x}{-3}=9}$

${\displaystyle \frac{a}{-5}=2}$

${\displaystyle -7=3y}$

${\displaystyle -7=\frac{x}{3}}$

${\displaystyle \frac{m}{4}=\frac{-2}{5}}$

${\displaystyle 4y=\frac{1}{2}}$

${\displaystyle \frac{-1}{3}=-5x}$

${\displaystyle \frac{-1}{9}=\frac{k}{3}}$

${\displaystyle \frac{-1}{6}=\frac{s}{-6}}$

${\displaystyle \frac{0}{4}=4s}$

${\displaystyle x+2=-1}$

${\displaystyle x-5=-6}$

${\displaystyle \frac{-3}{2}x=6}$

${\displaystyle 3x+2=7}$

${\displaystyle -4x-5=-3}$

${\displaystyle \frac{x}{6}+1=4}$

${\displaystyle \frac{a}{-5}-3=-2}$

${\displaystyle \frac{4x}{3}=7}$

${\displaystyle \frac{2x}{5}+2=8}$

${\displaystyle {\displaystyle \frac{3y}{2}-4=6}}$

${\displaystyle m+3=8}$

${\displaystyle \frac{1x}{2}=2}$

${\displaystyle \frac{2a}{3}=5}$

${\displaystyle \frac{-3x}{7}-4=4}$

${\displaystyle \frac{5x}{-2}-6=-\text{10}}$

${\displaystyle -4k-6=7}$

${\displaystyle \frac{-3x}{-2}+1=4}$

${\displaystyle \frac{-6x}{4}=2}$

${\displaystyle x+9=\text{14}}$

${\displaystyle y+5=\text{21}}$

${\displaystyle y+5=-7}$

${\displaystyle 4x=\text{24}}$

${\displaystyle 4w=\text{37}}$

${\displaystyle 6y-\text{11}=\text{13}}$

${\displaystyle -3x+8=-7}$

${\displaystyle 3z+9=-\text{51}}$

${\displaystyle \frac{x}{-3}=8}$

${\displaystyle \frac{6y}{7}=5}$

${\displaystyle \frac{w}{2}-\text{15}=4}$

${\displaystyle \frac{x}{-2}-\text{23}=-\text{10}}$

${\displaystyle \frac{2x}{3}-5=8}$

${\displaystyle \frac{3z}{4}=\frac{-7}{8}}$

${\displaystyle -2-\frac{2x}{7}=3}$

${\displaystyle 3-x=4}$

${\displaystyle -5-y=-2}$

${\displaystyle 3-z=-2}$

${\displaystyle 3x+2x=6}$

${\displaystyle 4x+1+6x=\text{10}}$

${\displaystyle 6y-6=-4+3y}$

${\displaystyle 3=4a-2a+a}$

${\displaystyle 3m+4=2m+1}$

${\displaystyle 5w-6=4+2w}$

${\displaystyle 8-3a=\text{32}-2a}$

${\displaystyle 5x-2x+6x=\text{13}}$

${\displaystyle x+2=3-x}$

${\displaystyle 5y+2y-1=6y}$

${\displaystyle x=\text{32}}$

${\displaystyle k=-4}$

${\displaystyle \frac{3x}{2}+4=\frac{5x}{2}=6}$

${\displaystyle \frac{x}{3}+\frac{3x}{3}-2=\text{16}}$

${\displaystyle x-2=6-x}$

${\displaystyle \frac{-5x}{7}=\frac{2x}{7}}$

${\displaystyle \frac{\mathrm{2x}}{3}+1=5}$

${\displaystyle \frac{-3x}{5}+3=\frac{2x}{5}+2}$

${\displaystyle \frac{3x}{4}+5=\frac{-3x}{4}-\text{11}}$

${\displaystyle \frac{3x}{7}=\frac{-3x}{7}+\text{12}}$

${\displaystyle \frac{5y}{\text{13}}-4=\frac{7y}{\text{26}}+1}$

${\displaystyle \frac{-3m}{5}=\frac{6m}{\text{10}}-2}$

${\displaystyle \frac{-3m}{2}+1=5m}$

${\displaystyle -3z=\frac{2z}{5}}$