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determinati x stiind ca1/8=x+3/40

Răspuns :

1/8=x+3/40
Aducem la numitorul comun ! 1/8 amplificam cu 5! Si obtinem
5/40=x+3/40
5=x+3
x=2
1/8=x+3/40
5/40=x+3/40
5=x+3
x=5-3
x=2