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ajutatima la asta5x-3=2x+12

Răspuns :

5x - 3 = 2x + 12

5x - 2x = 12 + 3

3x = 15

x = 15 : 3

x = 5
5x-3=2x+12
5x-2x=12+3
3x=15
x=15:3
x=5
Verificare:
5*5-3=2*5+12
25-3=10+12
22=22