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multimea solutiilor inecuatiei -2x+3>=11

Răspuns :

-2x+3≥11
-2x≥11-3
-2x≥8  |*(-1)
2x≤-8
x≤-8/2
x≤-4
x∈(-∞;-4]
-2x+3≥11 |-3
-2x≥8 |:2
-x≥4 |•(-1)
x≤-4
x€(-infinit; -4]