4P-9=-2P+21

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Solution for 4P-9=-2P+21 equation:


Simplifying
4P + -9 = -2P + 21

Reorder the terms:
-9 + 4P = -2P + 21

Reorder the terms:
-9 + 4P = 21 + -2P

Solving
-9 + 4P = 21 + -2P

Solving for variable 'P'.

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

Add '2P' to each side of the equation.
-9 + 4P + 2P = 21 + -2P + 2P

Combine like terms: 4P + 2P = 6P
-9 + 6P = 21 + -2P + 2P

Combine like terms: -2P + 2P = 0
-9 + 6P = 21 + 0
-9 + 6P = 21

Add '9' to each side of the equation.
-9 + 9 + 6P = 21 + 9

Combine like terms: -9 + 9 = 0
0 + 6P = 21 + 9
6P = 21 + 9

Combine like terms: 21 + 9 = 30
6P = 30

Divide each side by '6'.
P = 5

Simplifying
P = 5

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