2(3y-1)=7(y-2)+3怎么解,请把过程写清楚.
问题描述:
2(3y-1)=7(y-2)+3怎么解,请把过程写清楚.
答
2(3y-1)=7(y-2)+3
6y-2=7y-14+3
6y-7y=-14+3+2
-y=-9
y=9