解方程 5a+(2-4a)=0

问题描述:

解方程 5a+(2-4a)=0
8y-3(3y+2)=6

5a+(2-4a)=0
5a-4a+2=0
a+2=0
a=-2
8y-3(3y+2)=6
8y-9y-6=6
y=-6-6
y=-12