-P+20=13

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Solution for -P+20=13 equation: 


Simplifying
-1P + 20 = 13

Reorder the terms:
20 + -1P = 13

Solving
20 + -1P = 13

Solving for variable 'P'.

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

Add '-20' to each side of the equation.
20 + -20 + -1P = 13 + -20

Combine like terms: 20 + -20 = 0
0 + -1P = 13 + -20
-1P = 13 + -20

Combine like terms: 13 + -20 = -7
-1P = -7

Divide each side by '-1'.
P = 7

Simplifying
P = 7

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