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

$x=23, y=49$
1, $y=2x+3$ 2. $x+y=72$ $y=72-x$ Put the second one in the first one. $72-x=2x+3$ $72-3=3x$ $\frac{69}{3}=x$ $x=23$ $y=72-23$ $y=49$