3 x 4 2 x 3 8 x 2 7x 12 July 8, 2019 16 32 64 128 3) 4) 4 (3 + x)/2 7 - 3 (x - 8)/4 1 3) 4) (- 7 - x)/4 = (x - 2)/3 8/(3 - x) = 20/(4 + x)
