解方程：x+7分之3+2分之1=1
7x-7分之3=7分之4
2x+5又5分之1=10-3又5分之4
人气：497 ℃ 时间：2020-02-05 11:08:00
解答
x+3/7+1/2=1
x=1-1/2-3/7
x=1/14
7x-3/7=4/7
7x=3/7+4/7
7x=1
x=1/7
2x+5+1/5=10-3-4/5
2x=10-3-5-4/5-1/5
2x=1
x=1/2
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