Question

how do you solve
|3x|=18

Answer 1

We can get two different equations from this:

3x = 18

and

3x = -18

So:

x = 6, x = -6

x = {6, -6}

Answer 2

These are the steps:

|3x|=3x        Convert the 3x to positive

x=6          Divide 3 to both sides

Answer: x=6