p=315-4p+3p-75

Since p is on the right side of the equation, switch the sides so it is on the left side of the equation.

315-4p+3p-75=p

Subtract 75 from 315.

-4p+3p+240=p

Add -4p and 3p.

-p+240=p

-p+240=p

Subtract p from both sides of the equation.

-p+240-p=0

Subtract p from -p.

-2p+240=0

-2p+240=0

Subtract 240 from both sides of the equation.

-2p=-240

Divide each term in -2p=-240 by -2.

-2p-2=-240-2

Cancel the common factor of -2.

Cancel the common factor.

-2p-2=-240-2

Divide p by 1.

p=-240-2

p=-240-2

Divide -240 by -2.

p=120

p=120

Solve for p p=315-4p+3p-75