Answer
x = 0
y = -4
Work Step by Step
10x + 3y = -12 first equation
5x = -4y -16 second equation
-10x = 8y +32 multiply both sides by -2 in the second equation
-10x -8y = 32 subtract from - 8y both sides
add the equations to eleminate x
10x + 3y = -12
- 10x - 8y = 32
___________
-5y = 20
y = -4 divide both sides by -5
let y = -4 in first equation
10x + $3\times(-4)$ = -12
10x - 12 = -12
10x = 0 subtract from -12 both sides
x = 0 divide both sides by 10