解方程谢谢悬赏5要过程

2025-03-07 07:22:37
推荐回答(1个)
回答1:

两边同时乘以12得,
3(3y-1)-12=2(5y-7)
3(3y-1)-12-2(5y-7)=0
9y-3-12-10y+14=0
-y-1=0
Y=-1