Answer :
So,
[tex] \frac{p}{4} + 8 = 7[/tex]
Subtract 8 from both sides
[tex] \frac{p}{4} = -1[/tex]
Multiply both sides by 4
p = -4
[tex] \frac{p}{4} + 8 = 7[/tex]
Subtract 8 from both sides
[tex] \frac{p}{4} = -1[/tex]
Multiply both sides by 4
p = -4