Question

HELP ME PLZ!!!!!!!!     

 Find the solution of this system of equations.

5x - 6y = -90 and

-10x - 6y = -90

Answer 1

set equal to each other since both equal 90

5x-6y=-10x-6y
add 6y to both sides
5x=-10x
x=0


5(0)-6y=-90
-6y=90
divide by -6
y=-15

(x,y)
(0,-15)