x + 1/4 x = 10
4/4 x + 1/4 x = 10
5/4 x = 10
x = 10 × 4/5
x = 8
x - 1/5 x = 24
5/5 x - 1/5 x = 24
4/5 x = 24
x = 24× 5/4
x = 30x*（1-5分之1）=80 x+4分之1x=60解方程其他问题请采纳这题之后单独提问