Question

question
solve for all values of $y$ in simplest form.
$15 = |-y + 15|$
answer attempt 1 out of 2
additional solution no solution

Explanation:

Step1: Split absolute value equation

For $|A|=B$, $A=B$ or $A=-B$. So:
$-y + 15 = 15$ or $-y + 15 = -15$

Step2: Solve first equation

Isolate $y$:
$-y = 15 - 15$
$-y = 0$
$y = 0$

Step3: Solve second equation

Isolate $y$:
$-y = -15 - 15$
$-y = -30$
$y = 30$

Answer:

$y=0$ and $y=30$