Find the student’s error in solving the following inequality.
2 < –3x –4 < 5
6 &...
Mathematics, 21.01.2020 00:31 felicianorman97
Find the student’s error in solving the following inequality.
2 < –3x –4 < 5
6 < –3x < 5
–2 > x > –5/3
a. the student should have added 4 to all parts (left, middle, and right) to get 6 < –3x < 9.
b. the student divided 6/–3 incorrectly.
c. the student should not have switched the direction of the sign in the final step.
Answers: 2
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