解方程(3/8x+42)比5/12x =6比5
题目
解方程(3/8x+42)比5/12x =6比5
答案
(3/8x+42):5/12x =6:5
5/12 x*6=(3/8 x+42)*5
1/2 x=3/8 x+42
4/8 x-3/8 x=42
1/8 x=42
x=336
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