Question

Solve the equation -6-21=3p-12

Answer 1

Greetings and Happy Holidays! 

Solve for p.
$6p-21=3p-12$

Add 12 to both sides.
$(6p-21)+12=(3p-12)+12$

$6p-9=3p$

Add -6p to both sides.
$(6p-9)+(-6p)=(3p)+(-6p)$

$-9=-3p$

Divide both sides by 3.
$\frac{-9}{-3}= \frac{-3p}{-3}$

$3=p$

The Answer Is:
$\left[\begin{array}{ccc}p=3\end{array}\right]$

Hope this helps!
-Benjamin