The problem
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Why us the answer switched to X<-9
Answer provided by our tutors
We multiplied by (-1) both sides of the inequality:
- x > 9
and that is why the inequality sign changed:
x < -9
Why us the answer switched to X<-9
We multiplied by (-1) both sides of the inequality:
- x > 9
and that is why the inequality sign changed:
x < -9
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