zróbcie mi takie równanie
1/x +1/25 = 5
oblicz x
szybko
1/x +1/25 = 5 /*2525/x+1=125 /*x25+x=125x25=124x25/124=x
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1/x +1/25 = 5 /*25
25/x+1=125 /*x
25+x=125x
25=124x
25/124=x