8x 6 4x 5 12x 4 20x 3 4x 3 July 8, 2019 16 32 64 128 4 5 (8x + 20) = 6 (6x + 15) 6 ( − 8 x + 4 ) = 12 ( − 4 x + 2 ) 6(−8x+4)=12(−4x+2)