8:5=(x-6):15
人气:168 ℃ 时间:2020-03-26 15:14:53
解答
交叉相乘,5(x-6)=120,x-6=24,x=30.写清楚点就是说,8:5=(x-6):15也就是8/5=(x-6)/15,在等式两边同时乘以15,就有24=x-6,所以x=30。嗯如果还有什么不太清楚的地方也可以问我~
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