9x 8 7 x 4 ) 10 July 8, 2019 16 32 64 128 9x 8 7 x 4 )+ 10 9 x 8 = 4 7 - 8x = 4 9 - 10x 4) 4 7 - 8x =4 9-10x 4 7-8x=4 9-8x