Question

Which number line represents the solutions to |–2x| = 4?

Answer 1

Hello :
|–2x| = 4
|2x| = 4 equiv :  2x=4   or 2x = -4
x=2 or x=-2

Answer 2

Answer:

$x=-2$ or $x=2$

Step-by-step explanation:

we have

$\left|-2x\right|=4$

Find the first solution (positive case)

$+(-2x)=4$

$-2x=4$

$x=-2$

Find the second solution (negative case)

$-(-2x)=4$

$2x=4$

$x=2$