Math Solve for both systems 9x+3y=33 and -9x + 7y = 17 Asked by AnneS2 on 04 Oct 06:52 Last updated by anonymous on 05 Oct 10:35

9x+3y=33 9x-9x+3y=33-9x 3y=33-9x 3y/3=33-9x/3 y=11-3x -9x + 7y = 17 -9x + 7(11-3x) = 17 -9x + 7(11) (7)(-3x) = 17 -9x + 77 -21x = 17 77 -30x = 17 77 -30x-77 = 17-77 -30x=-60 -30x/-30=-60/-30 x=2 y=11-3x y=11-3(2) y=11-6=5