Determinați numerele întregi x pentru care: - 6 supra 2x+3 €Z

-6 | 2x+3
2x+3={1,-1,2,-2,3,-3,6,-6}
2x={-2,-4,-1,-5,0,-6,3,-9}
x∈Z⇒ x={-1,-2,0,-3}