P-7=5p-21

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Solution for P-7=5p-21 equation: 


Simplifying
P + -7 = 5p + -21

Reorder the terms:
-7 + P = 5p + -21

Reorder the terms:
-7 + P = -21 + 5p

Solving
-7 + P = -21 + 5p

Solving for variable 'P'.

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

Add '7' to each side of the equation.
-7 + 7 + P = -21 + 7 + 5p

Combine like terms: -7 + 7 = 0
0 + P = -21 + 7 + 5p
P = -21 + 7 + 5p

Combine like terms: -21 + 7 = -14
P = -14 + 5p

Simplifying
P = -14 + 5p

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