5 7x 4 )=- 3 (- 9x 12 ) 8 July 8, 2019 16 32 64 128 5 7x 4 )=- 3 (- 9x 12 )+ 8 5 x 7 = 35 9 – 7(x + 3) = 5 – 4x 5 x - 9 7= -12 8
