p+5=21

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Solution for p+5=21 equation: 


Simplifying
p + 5 = 21

Reorder the terms:
5 + p = 21

Solving
5 + p = 21

Solving for variable 'p'.

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

Add '-5' to each side of the equation.
5 + -5 + p = 21 + -5

Combine like terms: 5 + -5 = 0
0 + p = 21 + -5
p = 21 + -5

Combine like terms: 21 + -5 = 16
p = 16

Simplifying
p = 16

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