5P+6+3P=21

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Solution for 5P+6+3P=21 equation: 


Simplifying
5P + 6 + 3P = 21

Reorder the terms:
6 + 5P + 3P = 21

Combine like terms: 5P + 3P = 8P
6 + 8P = 21

Solving
6 + 8P = 21

Solving for variable 'P'.

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

Add '-6' to each side of the equation.
6 + -6 + 8P = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 8P = 21 + -6
8P = 21 + -6

Combine like terms: 21 + -6 = 15
8P = 15

Divide each side by '8'.
P = 1.875

Simplifying
P = 1.875

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