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Calculati : ‒3x +2 ≤ 11


Răspuns :

[tex]-3x+2 \leq 11 \\ -3x \leq 11-2 \\ -3x \leq 9 \\ x \leq 9:(-3) \\ x \leq -3 \\ x= (-3 ;  -2 ; -1 ; 0 ; 1 ; 2 ; 3 ; ...)[/tex]
-3x < = 11 - 2 
-3x < = 9
x < = 9 : (-3)
x > = - 3 
x = { -3; + inf}