(p+21)+(2p-36)+p=505

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Solution for (p+21)+(2p-36)+p=505 equation:


Simplifying
(p + 21) + (2p + -36) + p = 505

Reorder the terms:
(21 + p) + (2p + -36) + p = 505

Remove parenthesis around (21 + p)
21 + p + (2p + -36) + p = 505

Reorder the terms:
21 + p + (-36 + 2p) + p = 505

Remove parenthesis around (-36 + 2p)
21 + p + -36 + 2p + p = 505

Reorder the terms:
21 + -36 + p + 2p + p = 505

Combine like terms: 21 + -36 = -15
-15 + p + 2p + p = 505

Combine like terms: p + 2p = 3p
-15 + 3p + p = 505

Combine like terms: 3p + p = 4p
-15 + 4p = 505

Solving
-15 + 4p = 505

Solving for variable 'p'.

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

Add '15' to each side of the equation.
-15 + 15 + 4p = 505 + 15

Combine like terms: -15 + 15 = 0
0 + 4p = 505 + 15
4p = 505 + 15

Combine like terms: 505 + 15 = 520
4p = 520

Divide each side by '4'.
p = 130

Simplifying
p = 130

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