3(y-10)-2(y+15)=0 解方程
问题描述:
3(y-10)-2(y+15)=0 解方程
答
3(y-10)-2(y+15)=0
3y-30-2y-30=0
3y-2y-30-30=0
y-60=0
y=60
答
3(y-10)-2(y+15)=0
3y-30-2y-30=0
y-60=0
y=60