100-2P=40+2P

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Solution for 100-2P=40+2P equation: 


Simplifying
100 + -2P = 40 + 2P

Solving
100 + -2P = 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.
100 + -2P + -2P = 40 + 2P + -2P

Combine like terms: -2P + -2P = -4P
100 + -4P = 40 + 2P + -2P

Combine like terms: 2P + -2P = 0
100 + -4P = 40 + 0
100 + -4P = 40

Add '-100' to each side of the equation.
100 + -100 + -4P = 40 + -100

Combine like terms: 100 + -100 = 0
0 + -4P = 40 + -100
-4P = 40 + -100

Combine like terms: 40 + -100 = -60
-4P = -60

Divide each side by '-4'.
P = 15

Simplifying
P = 15

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