Question

Where did this student make the mistake when solving this inequality?

2x + 4 > 5x - 5

-2x -2x

4 < 3x - 5

+5 +5

9 < 3x

/3 /3 (divide by 3)

3 < x

options:

When subtracting the same value from both sides you don't need to switch the inequality sign


There is no mistake, it was solved correctly


You don't subtract 2x from each side, you add 2x to each side


When dividing by 3 you should switch the inequality sign

Answer 1

You don't subtract 2x from each side, you add 2x to each side