P+(p+3)=21

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Solution for P+(p+3)=21 equation:


Simplifying
P + (p + 3) = 21

Reorder the terms:
P + (3 + p) = 21

Remove parenthesis around (3 + p)
P + 3 + p = 21

Reorder the terms:
3 + P + p = 21

Solving
3 + P + p = 21

Solving for variable 'P'.

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

Add '-3' to each side of the equation.
3 + P + -3 + p = 21 + -3

Reorder the terms:
3 + -3 + P + p = 21 + -3

Combine like terms: 3 + -3 = 0
0 + P + p = 21 + -3
P + p = 21 + -3

Combine like terms: 21 + -3 = 18
P + p = 18

Add '-1p' to each side of the equation.
P + p + -1p = 18 + -1p

Combine like terms: p + -1p = 0
P + 0 = 18 + -1p
P = 18 + -1p

Simplifying
P = 18 + -1p

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