5分之2(3y-1)=3分之2y-1
6(3y-1)=10y-15(方程两边同时乘以15)
18y-6=10y-15
18y-10y=6-15
8y=-9
y= -9/8
y=负8分之9
5分之2(3y-1)=3分之2y-2
6(3y-1)=10y-30(方程两边同时乘以15)
18y-6=10y-30
18y-10y=6-30
8y= -24
y=(-24) ÷8
y= -3