Question

What's the simplest form of 2x + 3 - x + 5?

A. x + 8
B. 3x + 8
C. x - 2
D. x - 8

Answer 1

2x +3 - x + 5 = 

2x - x +3 + 5 =

2x - x + 8

x - 8 

Answer D

Answer 2

2x + 3 - x + 5.

1. Combine like terms.
     2x - x = x       and        3 + 5 = 8
     So you have x + 8

Answer: A. x + 8