Question

EASY FAN/MEDAL
Solve for x: |2x + 6| − 4 = 20
A)x = 9 and x = 11
B)x = −9 and x = 15
C)x = 9 and x = −15
D)No solution

Answer 1

If my memory is correct, you would need to split this up into two problems:

\[\left| 2x + 6 \right| -4 = 20\] and \[\left| 2x - 6\right|+4 =20\]

Then solve for x for each equation...

Answer 2

fan and medal for the answer

Answer 3

wrong

Answer 4

?

Answer 5

the answer is A

Answer 6

just do this on your calculator and you'll see... :)

Answer 7

thank you sooo much ^_^

Answer 8

np :)

Answer 9

\[|2x-6|-4=20 \\ \text{ add 4 on both sides } \\ |2x+6|=24 \\ \text{ this gives two equations to solve } \\ 2x+6=24 \text{ or } 2x+6=-24 \]