3 x 4 1 2 x 12 1 2 July 8, 2019 16 32 64 128 12 1 2 x 4 1 5 x 2 2 3 4 1(2-3x)=12-(12 3x+3 8) 12 x 4 / 3 12 x 1 3/4 12 3/4 x 2 1/2
