解方程怎么写啊?

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解方程怎么写啊?解方程怎么写啊?解方程怎么写啊?403%x+x=4.2就这样答403%x+x=4.2(403%+1)x=4.2503%x=4.2503%x÷503%=4.2÷503%x=4.2×503

解方程怎么写啊?
解方程怎么写啊?

解方程怎么写啊?
403%x+x=4.2
就这样答
403%x+x=4.2
(403%+1)x=4.2
503%x=4.2
503%x÷503%=4.2÷503%
x=4.2×503%的倒数就是503份之100
x=503份之420