(P+11)+(3P-20)+P=691

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Solution for (P+11)+(3P-20)+P=691 equation: 


Simplifying
(P + 11) + (3P + -20) + P = 691

Reorder the terms:
(11 + P) + (3P + -20) + P = 691

Remove parenthesis around (11 + P)
11 + P + (3P + -20) + P = 691

Reorder the terms:
11 + P + (-20 + 3P) + P = 691

Remove parenthesis around (-20 + 3P)
11 + P + -20 + 3P + P = 691

Reorder the terms:
11 + -20 + P + 3P + P = 691

Combine like terms: 11 + -20 = -9
-9 + P + 3P + P = 691

Combine like terms: P + 3P = 4P
-9 + 4P + P = 691

Combine like terms: 4P + P = 5P
-9 + 5P = 691

Solving
-9 + 5P = 691

Solving for variable 'P'.

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

Add '9' to each side of the equation.
-9 + 9 + 5P = 691 + 9

Combine like terms: -9 + 9 = 0
0 + 5P = 691 + 9
5P = 691 + 9

Combine like terms: 691 + 9 = 700
5P = 700

Divide each side by '5'.
P = 140

Simplifying
P = 140

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