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Elsa81
a fost răspuns

rezolvati ecuatia : x : 2 + x + ( 2x - 3,5) = 42,5

Răspuns :

Nitugheorghe57
x÷2+x+(2x-3.5)=42.5⇒
x÷2+x+2x-3.5=42.5⇒
x÷2+3x-3.5=42.5⇒x÷2+3x=42.5+3.5⇒
x÷2+3x=46⇒
x+3x=46×2⇒
4x=92⇒
x=92/4⇒x=23
sucees

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