Sam forgot to reverse the inequality sign after dividing both
sides by -4
so ......
-4x/-4 < -24/-4
x < 6
Sam solved the following problem:
-4x + 5 > 29
-4x + 5 - 5 > 29 - 5
-4x > -24
-4x/-4 > -24/-4
x > 6
What were his two mistakes?
5 answers
Thank you!
@Reiny should there be a line under the "<" like this ≤?
Not unless it was there to start with.
mistake: -4x > -24 should be -4x > +24.
Answer: X < -6.
Answer: X < -6.
1 answer