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5(x+12)=100 va rog ajutati-ma

Răspuns :

[tex]5x+60=100 \\ 5x=100-60 \\ x=40:5 \\ x=8[/tex]
5(x+12)=100⇔5x+60=100⇔5x=100-60⇔5x=40⇒x=40/5⇒x=8
R: x=8