(4x+55):(7x+55)=5:6

2025-12-05 06:36:33
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回答1:

(4x+55):(7x+55)=5:6 交叉相乘
6(4x+55)=5(7x+55)
24x+330=35x+275
35x-24x=330-275
11x=55
x=5