Question

3-7p= -102 please explain, thank you

Answer 1

When you solve an equation with a variable in it, you need to get it to be by itself.

First step:
-7p= -105
-3 -3

Second step:
Divide to get variable by itself.

-7/-7p= -105/-7

Third step:
p= 15

Answer 2

3-7p=-102
-7p=-102-3
-7p=-105
P=-105/-7
P=15
Hope this helps!