Răspunsuri

2014-05-22T09:18:19+03:00
-2x+3>=11
-2x>=11-3
-2x>=8 / : -2
x<=-4

x apartine (-infinit, -4]
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2014-05-22T09:21:02+03:00
 -2x+3 11 
-2x
≥11-3
-2x≥8
-x≥8:2
-x≥4
x≤-4 (pentru ca am imultit cu -1 -x devine x, ≥ devine ≤  si 4 devine -4
x∈(-∞,-4]

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