Question

Identify the error in generating and expression equivalent to 4 + 2x - 1/2(10 - 4x). Then the correct the error

Answer 1

Answer:

The final expression should be 4x-1

Step-by-step explanation:

The error occurs in the simplification from the 3rd to 4th step. You can see two positive 2x's, but suddenly they vanish.

4 + 2x - 5 + 2x

4 - 5 + 4x

-1 + 4x

4x -1