Verified Answer :

Move all terms not containing x

from the center section of the interval inequality.

2−1<−x<6−1



Subtract 1

from 2

to get 1.



1<−x<6−1



Subtract 1

from 6

to get 5.



1<−x<5



Multiply each term in the inequality by −1.



1⋅−1>−x⋅−1>5⋅−1



Multiply 1

by −1

to get −1.



−1>−x⋅−1>5⋅−1



Multiply −x

by −1

to get x.



−1>x>5⋅−1



Multiply 5

by −1

to get −5.



−1>x>−5



Rewrite the interval so that the left-hand value is less than the right-hand value. This is the correct way to write an interval solution.

−5<x<−1



Convert the inequality to set notation.

(−5,−1)

                                                                                                                               

\(2 \leq 1 - x \leq 6\\ 1\leq-x\leq5\\ -1\geq x\geq-5\\ x\in\langle-5,-1\rangle\)