3 5x 4 )- 2 10 3x July 8, 2019 16 32 64 128 4 5x 2 )= 10 3x 3 )+ 15 6x 3 5x 10 4 3x 2 2 (- x 3 )-( 5x 10 )=- 4 1 3x )+( 8x 7 3 x-5=x+3