4x 7 5 x 3 )= 2x 1 July 8, 2019 16 32 64 128 5 x 1 )- 3 2x 4 )= 4x 7 3x (- 2x 7 )- 5 x 1 )( 4x 3 2x 3 5 x 3 4 4x 1 7 solve and check 5 x 7 = 35 4) 5x - 7 = 2 - 4x 7-3x =1-5x
