10x 4 7 8 July 8, 2019 16 32 64 128 10x 4 7 8 what is x 4 7 8x 4 9 10x Solve 10x 4 7 8 10x 7 8 2x 4 )- 9 10 x 10 40 7 x 10 10 x 10 x 10x + 4 = 7