1⼀2(2x-1)-3(2⼀3x+1⼀2)=x⼀2 x-2[x-3(x+4)-6]=1 2⼀7(3y+7)=2-3⼀2y

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2024-12-16 01:30:49
推荐回答(1个)
回答1:

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

x-2[x-3(x+4)-6]=1
x-2[x-3x-12-6]=1
x-2[-2x-18]=1
x+4x+36=1
5x=-35
x=-7

2/7(3y+7)=2-3/2y
4(3y+7)=14(2-3/2y)
12y+28=28-21y
33y=0
y=0