Question

How do you solve this problem:

P-15=13-6p

Answer 1

$p-15=13-6p$

$-15-13=-6p-p$

$-28=-7p$

$\frac{-28}{-7}=\frac{-7p}{-7}$

$4=p$



$4-15=13-6(4)$

$-11=-11$

Answer 2

   P-15=13-6p
+6p           +6p
-----------------
7p-15=13
     +15  +15
-----------------
7p=28
7      7
p = 4