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3(x + 2 ) + 2x =61


Cum rezolv ?


Răspuns :

3·(x + 2 ) + 2x = 61 
3x + 6 +2x = 61
5x = 55
x = 11
3(x+2)+2x=61 => 3x+6+2x=61 => 5x+6=61 => 5x=61-6 => 5x=55 => x=55/5 => x=11