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Am nevoie de ajutor! ​

Am Nevoie De Ajutor class=

Răspuns :

Răspuns:

-1 <= ( 2x + 1 ) : 3 < 3 / ×3

-1 × 3 <= 2x + 1 < 3 × 3

-3 <= 2x + 1 < 9 / -1

-3 -1 <= 2x < 9 -1

-4 <= 2x < 8 / :2

-4 : 2 <= x < 8 : 2

-2 <= x < 4

x apartine [-2 , 4 )