3(x+1)减三分之一(x-1)=2(x-1)-二分之一(x+1)

2024-12-29 09:44:21
推荐回答(2个)
回答1:

3(x+1)-1/3(x-1)=2(x-1)-1/2(x+1)
3X+3-1/3X+1/3=2X-2-1/2X-1/2
8/3X+10/3=3/2X-5/2
X=5

回答2:

3(x+1)-1/3(x-1)=2(x-1)-1/2(x+1)
3(x+1)+1/2(x+1)=2(x-1)+1/3(x-1)
7/2(x+1)=7/3(x-1)
7x=-35
x=-5