Calculati: 3+2x-1-x=7-2


Răspuns :

3+2x-1-x=7-2
2+x=5
x=5-2
x=3
3 + 2x - 1 - x = 7 - 2
3 - 1 + 2x - x = 5
2 + x = 5
x = 5 - 2
x = 3