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cum se rezolva inecuatia (x+2)ori 3-45 mai mic sau egal decat 15


Răspuns :

(x+2) x 3 - 45 ≤ 15
(x+2) x 3 ≤ 45+ 15
x+2 ≤ 60 :3
x ≤ 20 - 2
x ≤ 18.
(x+2) x 3 - 45 ≤ 15
(x+2) x 3 ≤ 45+ 15
x+2 ≤ 60 :3
x ≤ 20 - 2
x ≤ 18.