Intermediate Algebra for College Students (7th Edition)

{$(-2,1)$}
To solve the given problem we will have to plug the simplest equation into the other equation and then solve for the other variable. As we are given that $0.2x-y=-1.4$ and $-3.5+y=8$ This implies $x=-2$ $0.2x-y=-1.4$ or, $0.2(-2)-y=-1.4$ or, $-0.4-y=-1.4 \implies y=1$ Hence, the desired result is: {$(-2,1)$}