3分之2y-1 -6分之10y+1=4分之2y+1 -1

问题描述:

3分之2y-1 -6分之10y+1=4分之2y+1 -1

(2y-1)/3-(10y+1)/6=(2y+1)/4-1
4(2y-1)-2(10y+1)=3(2y+1)-12
8y-4-20y-2=6y+3-12
18y=3
y=1/6