4x 10 20 2x July 8, 2019 16 32 64 128 4x 20 10 2x 26 4x 10 2x 20 180 2x 10 4x 20 solve for x 4x y 20 2x 2y 10 4x 20 2 2x 10 4x 20 2x 2 x 10 20 2x 10 4x comprobacion
