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数学
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解个方程:(五分之四X-10)除以(X-8)=七分之五 求X
人气:178 ℃ 时间:2020-05-25 06:32:43
解答
两边同乘7(x-8)
7乘以(五分之四x-10)=5乘以(X-8)
五分之二十八 - 70=5x-40
五分之二十八 - 5x=-40+70
五分之三x =30
x=50
检验:把x=50带入7(x-8)不等于0
所以x=50是原分式方程的解
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