Question

John turned in the following solution to an inequality and his teacher marked it wrong. What mistake did John make?

A. incorrectly reversed the inequality symbol

B. Failure to combine like terms

C. Incorrect division

D. Incorrect addition

Answer 1

Answer: D incorrect addition

Explanation when moving the +5 over with the -3, they said that -5-(-3) was -9, which is incorrect. It should be 2!