Question

Simplify (3x − 8) + (2x + 5) − (4x − 8).
A) x − 11
B) x + 5
C) x + 21
D) 9x + 5

Answer 1

Answer:

B

Step-by-step explanation:

3x-8+2x+5-4x+8

3x+2x-4x    -8+5+8

     x        +        5      

x+5

Answer 2

The answer is (A) as
When expanded we get:
3x - 8 + 2x + 5 - 4x - 8
After collecting the like terms:
3x + 2x - 4x - 8 + 5 - 8
Now simplify (step by step)
1) 5x - 4x - 8 + 5 -8
2) x - 8 + 5 - 8
3) x -16 + 5
4) x -11

Therefore the answer equals (x - 11) which is option (A)