Question

x+7/8x=42这方程怎么解

Answer 1

x+7/8x=42
15/8x=42
15x=42x8
15x=336
x=67.5

Answer 2

x+7/8x=42
x*15/8=42
x=42*8/15
x=112/5

Answer 3

x=（42X8）/15=112/5

Answer 4

x=22.4