Question

Whats the solution to the given system of equations?

-5x+8y=-36
5x+7y=6

Answer 1

x=4, y=-2

Explanation:

-5x+8y=-36

5x+7y=6

eqn 1+ eqn 2 gives

15y=-30

divide both sides by 15

y=-2, put in eqn 2

5x+7(-2)=6

5x=20 divide both sides by 5

x=4