X 2 4 1 3 x 2x 1 3 solve July 8, 2019 16 32 64 128 X 2 4 1 3 x 2x 1 3 solve and check Solve for x 7x 1 4 1 3 2x x 1 2 )= 6 1 3 3 4 7x 1 )-( 2x 1 x 2 )= x 3 2 solve and check