45x-15=60x-60
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45x-15=60x-60
45x-15=60x-60
45x-15=60x-60
45x-15=60x-60
移项,得:60-15=60x-45x
45 =15x
系数化一,得x=3
你是要求X的得数?
——!!!
45x-15=60x-60
60x - 45x = 60 -15
15x = 45
x=3
45X-15=60X-60
45X-60X=-60+15
-15X=-45
X=3
(45% x + 15) / x = 60% x怎么解
45x+15=60x-60
45x-15=60x-60
x/45=x/60-15
(x-15)/45=(x/60)+1
(4/x-5)+(x-3)/(12-x)=(x-45)/(x^2-17x+60)
6.8+60%x=14 x+45%x=11.6 75%x-四分之一x=38
x/(x/12+x/15)*(x/12-x/15)=60
x/45+x/90-x/60=1 解方程
45X(x+1)=60X 怎么解
x/(120-x)=(60-x)/60
(X-15)/15=(X+60)/60
x/45=(x+30)/60+1 x=270x/45=(x+30)/60+1x=270
40x+15=60x-60
x(x-1)(x+1)=60
x/(120-x)=x/60
60%X + 80%X - 12 = X
60x(x-4)=30x