(x-4)÷3-8=-(x+2)÷2

2024-11-15 23:24:57
推荐回答(1个)
回答1:

1、解方程(x-4)÷3-8=-(x+2)÷2
两边乘6得
2(X-4)-48=-3(X+2)
2X-8-48=-3X-6
(2+3)X=56-6
5X=50
X=10
2、解方程4x-(3a+1)=6x+2a-1
(4-6)X=2a-1+3a+1
-2X=5a
X=-5a/2
则-5a/2=10
a=-4
a-a/1=-4+1/4=-15/4