3p-42=p

Solution for 3p-42=p equation:

Simplifying
3p + -42 = p

Reorder the terms:
-42 + 3p = p

Solving
-42 + 3p = p

Solving for variable 'p'.

Move all terms containing p to the left, all other terms to the right.

Add '-1p' to each side of the equation.
-42 + 3p + -1p = p + -1p

Combine like terms: 3p + -1p = 2p
-42 + 2p = p + -1p

Combine like terms: p + -1p = 0
-42 + 2p = 0

Add '42' to each side of the equation.
-42 + 42 + 2p = 0 + 42

Combine like terms: -42 + 42 = 0
0 + 2p = 0 + 42
2p = 0 + 42

Combine like terms: 0 + 42 = 42
2p = 42

Divide each side by '2'.
p = 21

Simplifying
p = 21