Question

How many solutions are there to the equation below |x|=77?

Answer 1

C.

Solve for x by simplifying both sides of the equation, then isolating the variable.

x = 77, -77

Answer 2

$Solution, \left|x\right|=77\quad :\quad x=-77\quad \mathrm{or}\quad \:x=77$

Steps:

$\left|x\right|=77$

$|f\left(x\right)|=a\quad \Rightarrow \:f\left(x\right)=-a\quad \mathrm{or}\quad \:f\left(x\right)=a, |f\left(x\right)|=a\quad \Rightarrow \:f\left(x\right)=-a\quad \mathrm{or}\quad \:f\left(x\right)=a$

The correct answer is C. 2

Hope this helps!!!

<3 -austint1414