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数学
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带除法的方程怎么解
[(7-2x)/4]*8+3x=11.5怎么解
人气:331 ℃ 时间:2020-06-18 20:37:50
解答
[(7-2x)/4]*8+3x=11.5
[(7-2x)/4*8]+3x=11.5
(7-2x)*2+3x=11.5
14-4x+3x=11.5
14-x=11.5
-x=-2.5
x=2.5
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