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0.6X-5=1/2X怎么解?
人气:134 ℃ 时间:2020-04-18 12:09:57
解答
0.6x - 5 = 1/2x
0.6x - 5 = 0.5x
0.6x - 0.5x = 5
0.1x = 5
x = 5÷0.1
x = 50
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