解方程4+7/10X=102 X-1/4X=3/8

问题描述:

解方程4+7/10X=102 X-1/4X=3/8

4+7/10X=102
40+7x=1020
7x=980
x=140
X-1/4X=3/8
3/4x=3/8
x=1/2