p+(p+21)+(4p-36)=945

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Solution for p+(p+21)+(4p-36)=945 equation: 


Simplifying
p + (p + 21) + (4p + -36) = 945

Reorder the terms:
p + (21 + p) + (4p + -36) = 945

Remove parenthesis around (21 + p)
p + 21 + p + (4p + -36) = 945

Reorder the terms:
p + 21 + p + (-36 + 4p) = 945

Remove parenthesis around (-36 + 4p)
p + 21 + p + -36 + 4p = 945

Reorder the terms:
21 + -36 + p + p + 4p = 945

Combine like terms: 21 + -36 = -15
-15 + p + p + 4p = 945

Combine like terms: p + p = 2p
-15 + 2p + 4p = 945

Combine like terms: 2p + 4p = 6p
-15 + 6p = 945

Solving
-15 + 6p = 945

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 + 6p = 945 + 15

Combine like terms: -15 + 15 = 0
0 + 6p = 945 + 15
6p = 945 + 15

Combine like terms: 945 + 15 = 960
6p = 960

Divide each side by '6'.
p = 160

Simplifying
p = 160

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