解方程：(1-2/5)X(x-100)=x-110

解方程：(1-2/5)X(x-100)=x-110
解方程：(1-2/5)X(x-100)=x-110

解方程：(1-2/5)X(x-100)=x-110
(1-2/5)X(x-100)=x-110
0.6x-60=x-110
x-0.6x=110-60
0.4x=50
x=50÷0.4
x=125

x=125

(1-2/5)×(x-100)=x-110
3x/5-60=x-110
2x/5=50
x=125

原式=3/5x－60＝x－110
2／5x＝50
x＝125

3/5*（x-110)=x-110
3/5x-60=x-110
x-3/5x=110-60
2/5x=50
x=125

3/5（X-100）=X-110
3X-300=5X-550
2X=250
X=125

(3/5)x-60=x-110
(2/5)x=50
x=125