(2x-1)÷3=(x+2)÷4-2
问题描述:
(2x-1)÷3=(x+2)÷4-2
答
(2x-1)/3=(x+2)/4-2
2x/3-1/3=x/4+1/2-2
5x/12=-7/6
x=-14/5 (-2.8)