解方程:2.4减0.5分之(y-4)等於5分之3y 2.4-(y-4/0.5)=3/5y

解方程:2.4减0.5分之(y-4)等於5分之3y 2.4-(y-4/0.5)=3/5y

2.4-(y-4)/0.5=3/5y
2.4-2(y-4)=3/5y
12 -10(y-4)=3y
12-10y+40=3y
13y=52
y=4