Algebra
posted by Math .
I need some help solving this system of equations:
5x  y = 18
–4x – 2y = –6

I would use substitution, from the 1st:
y = 5x18
sub into the 2nd:
4x  2(5x18) = 6
4x  10x + 36 = 6
14x = 42
x = 3
y = 5(3)18 = 3
x=3 , y = 3