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−6 < x + 1 ≤ 1 is what kind of linear inequality.
A. solution
B. pair
C. union
D. reverse
E. double


Sagot :

-6 < x + 1 ≤ 1
-1        -1    -1
-7 < x ≤ 0
-7 < x or x ≤ 0
x > -7 or x ≤ 0