2x +6=x+2 3(x-1)+2x=x+5

2x 6x2 3x12xx5 class=

Răspuns :

2x + 6 = x + 2
2x - x = - 6 + 2
x = - 4
3(x - 1) + 2x = x + 5
3x - 3 + 2x = x + 5
5x - x = 3 + 5
4x = 8
x = 8/4
x = 2