Question

please help stuck on this

Solve for x: |2x + 6| - 4 = 20
Select one:
a. x = 9 and x = 11
b. x = -9 and x = 15
c. x = 9 and x = -15
d. No solution

Answer 1

it would be C

Answer 2

add 4 to both sides of the equation and you'll get

|2x + 6| = 24

so you are now solving 2 equations

2x + 6 = 24 and 2x + 6 = -24

hope it helps

Answer 3

it would be C

Answer 4

http://www.wolframalpha.com

Answer 5

thanks

Answer 6

Make your life as easy as you can.

Solve for x: |2x + 6| - 4 = 20

|2x + 6| = 24

2|x + 3| = 24

|x + 3| = 12

Now, x + 3 = 12 or x + 3 = -12