15=40-2P

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Solution for 15=40-2P equation:


Simplifying
15 = 40 + -2P

Solving
15 = 40 + -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.
15 + 2P = 40 + -2P + 2P

Combine like terms: -2P + 2P = 0
15 + 2P = 40 + 0
15 + 2P = 40

Add '-15' to each side of the equation.
15 + -15 + 2P = 40 + -15

Combine like terms: 15 + -15 = 0
0 + 2P = 40 + -15
2P = 40 + -15

Combine like terms: 40 + -15 = 25
2P = 25

Divide each side by '2'.
P = 12.5

Simplifying
P = 12.5

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