2x+6=3+x 4-3x=3-2x x-1/2=-1/2x+2 -x/3=2x-7/3

分类: 作业答案 • 2021-12-31 12:31:58

问题描述：

2x+6=3+x 4-3x=3-2x x-1/2=-1/2x+2 -x/3=2x-7/3
2x+6=3+x
4-3x=3-2x
x-1/2=-1/2x+2
-x/3=2x-7/3

答

(1) 2x+6=3+x
2x-x=3-6
x=-3
(2) 4-3x=3-2x
2x-3x=3-4
-x=-1
x=1
(3) x-1/2=-1/2x+2
x+1/2x=2+1/2
3/2x=5/2
x=5/3
(4) -x/3=2x-7/3
2x+x/3=7/3
7/3x=7/3
x=1