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a fost răspuns

12 ( x + 1 ) - 4 ( x + 1 ) = 40

Răspuns :

Best31cor
8(x+1)=40 |:8
x+1=5 |-1
x=4
Nitugheorghe57
12(x+1)-4(x+1)=40⇒
12x+12-4x-4=40⇒8x=-8+40⇒8x=32⇒x=32/8⇒x=4
succes

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