Răspuns :
2*(5x-12) (Se inmulteste 2* cu fiecare termen din paranteza)
2*5x-2*12≤6
10x-24≤6
10x≤24+6
x≤30:10
x≤3
Concluzie:
xapartine{-∞,0,1,2,3}apartineZ
xapartine{0,1,2,3}apartineN
2*5x-2*12≤6
10x-24≤6
10x≤24+6
x≤30:10
x≤3
Concluzie:
xapartine{-∞,0,1,2,3}apartineZ
xapartine{0,1,2,3}apartineN