Raymond B. answered • 02/18/22
Tutor
5
(2)
Math, microeconomics or criminal justice
-8x -8y = 0
-5x -7y = -12
multiply 1st equation by 5
-40x - 40y = 0: Equation A
multiply 2nd equation by 8
-40x - 56y = - 96: Equation B
subtract Equation B from A to get
16y = 96
divide by 16
y = 96/16 = 6
y = 6
-8x -8(6) = 0
-x -6 = 0
x =-6
(x,y) = (-6, 6)
x=-6 y=6
