## Introductory Algebra for College Students (7th Edition)

x=$\frac{1}{2}$
$4x+8x-2x=20-15$ $12x-2x=20-15$ $10x=20-15$ $10x=5$ $x=\frac{5}{10}$ $x=\frac{1}{2}$ Check the answer. 4($\frac{1}{2}$)+8($\frac{1}{2}$)-2($\frac{1}{2}$)=20-15 2+4-1=20-15 6-1=5 5=5