5-x=2x+2这个解方程怎么做

2025-06-28 19:12:22
推荐回答(1个)
回答1:

-x=-2x/5+1
-5x=2x+5
7x=-5
x=-5/7
2x-1/3 =-x/3+2
6x-1 = -x+6
7x = 7
x = 1