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Determinati solutiile din multimile Z ale inecuatilor

A) 3(2x+3)+2(3x+2)<9x+34


Răspuns :

<=> 6x+9+6x+4<9x+34<=> 12x+13<9x+34<=> 3x<21<=> x<7

                                                             x apartine Z     ==========>x apartine {6, 5, 4.....-1, -2......}