-5(y-15=3x) = -5y+75=-15x
add 15x to both sides and subtract 75 to both sides
-5y+15x=-75
5y-2x=-3
13x=-78
divide 13 to both sides
x=-6
y-15=3(-6)
y-15=-18
add 15 to both sides
y=-3
so the answer is (-6,-3)
I hope that this helped you sweetie :)
