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Picuslau43
a fost răspuns

Rezolvati in multimea numerelor naturale ecuatiile:

2x+7(x+1)+5=18+3x+6=

Răspuns :

Sergheibalan21
2X+7xX+7x1+5=24=3X
2X+7X=7=5=25+3X
9X+12=24+3X
9X-3X=24-12
6X=24-12
6X=12
X=12:6
X=2
S=(2)