解方程8:(7X+15)=7:8

问题描述:

解方程8:(7X+15)=7:8

8*8=(7*(7x+15))
x=-41/49

8:(7X+15)=7:8
8x8 =7(7X+15)
64 =49X+105
49X =64-105
49X = -41
X = -41/49