8x+5y=-13
3x+4y=10
*4 on top
*5 on buttom
32x + 20y = - 52
15x + 20y = 50
subtraction
32x - 15x = - 52 - 50
17x = - 102
x = - 6
and then
3 * (-6) + 4y = 10
4y = 28
y = 7
