Question

How do you check your answer or plug it in after solving |2x + 1| = 9 ???

Answer 1

Explanation:

To solve:

|2x+1|=9

|2x+1|=-9

2x=8

x=4

2x=-10

x=-5

2x+1=9

2(4)+1=9

9=9, so its true.

2x+1=-9

2(-5)+1=-9

-9=-9, so it’s true too

Answer 2

x = 4

---------------------------------

Explanation:

2x + 1 = 9

2x = 9 - 1

2x = 8

x = 8 ÷ 2

x = 4

----------------------------------

FOLLOW ME

PLEASE