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8x-2(1-x)=7X-3(X-1)
人气:242 ℃ 时间:2020-04-20 01:52:32
解答
8x - 2(1 - x) = 7x - 3(x - 1)
8x - 2 + 2x = 7x - 3x + 3
10x - 2 = 4x + 3
10x - 4x = 3 + 2
6x = 5
x = 5÷6
x = 5/6
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