三道解方程7(x-2)=2x-346(x+1/2)+2=29-3(x-1)7(x+3)+4=24-3(x+3)
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三道解方程
7(x-2)=2x-34
6(x+1/2)+2=29-3(x-1)
7(x+3)+4=24-3(x+3)
7(x-2)=2x-34
6(x+1/2)+2=29-3(x-1)
7(x+3)+4=24-3(x+3)
![三道解方程7(x-2)=2x-346(x+1/2)+2=29-3(x-1)7(x+3)+4=24-3(x+3)](/uploads/image/z/19999624-40-4.jpg?t=%E4%B8%89%E9%81%93%E8%A7%A3%E6%96%B9%E7%A8%8B7%28x-2%29%3D2x-346%28x%2B1%2F2%29%2B2%3D29-3%28x-1%297%28x%2B3%29%2B4%3D24-3%28x%2B3%29)
7(x-2)=2x-34
7X-14=2X-34
7X-2X=-34+14
5X=-20
X=-4
6(x+1/2)+2=29-3(x-1)
6X+3+2=29-(3X-3)
6X+3+2=29-3X+3
6X+3X=29+3-3-2
9X=27
X=3
7(x+3)+4=24-3(x+3)
7(x+3)+3(x+3)=24-4
10(x+3)=20
(x+3)=2
X=-1
7X-14=2X-34
7X-2X=-34+14
5X=-20
X=-4
6(x+1/2)+2=29-3(x-1)
6X+3+2=29-(3X-3)
6X+3+2=29-3X+3
6X+3X=29+3-3-2
9X=27
X=3
7(x+3)+4=24-3(x+3)
7(x+3)+3(x+3)=24-4
10(x+3)=20
(x+3)=2
X=-1
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