P+31=20

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Solution for P+31=20 equation: 


Simplifying
P + 31 = 20

Reorder the terms:
31 + P = 20

Solving
31 + P = 20

Solving for variable 'P'.

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

Add '-31' to each side of the equation.
31 + -31 + P = 20 + -31

Combine like terms: 31 + -31 = 0
0 + P = 20 + -31
P = 20 + -31

Combine like terms: 20 + -31 = -11
P = -11

Simplifying
P = -11

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