a fost răspuns

3(2x-1) + 2 ( 4x-3) < 6 (2x+7) -25 =


Răspuns :

Rawanask
3(2x-1) + 2 ( 4x-3) < 6 (2x+7) -25 
6x-3+ 8x-6< 12x+42-25
14x -9 < 12x -17
14x-12x < -17 +9
2x <  -8
x < -8:2
x < -4. ⇒ x { ....-6,-5 } in Z, dar daca ai in R, atunci x ∈ ( -∞ ; -4)