280:(x-10)=714y+13-7y=153

Question

280:(x-10)=7
14y+13-7y=153

Answer 1

280:(х-10)=7,
х-10=280:7,
х-10=40,
х=40+10,
х=50.

Answer 2

Вот решение!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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