P=(-0.5)(P-20)+110

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Solution for P=(-0.5)(P-20)+110 equation: 


Simplifying
P = (-0.5)(P + -20) + 110

Reorder the terms:
P = -0.5(-20 + P) + 110
P = (-20 * -0.5 + P * -0.5) + 110
P = (10 + -0.5P) + 110

Reorder the terms:
P = 10 + 110 + -0.5P

Combine like terms: 10 + 110 = 120
P = 120 + -0.5P

Solving
P = 120 + -0.5P

Solving for variable 'P'.

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

Add '0.5P' to each side of the equation.
P + 0.5P = 120 + -0.5P + 0.5P

Combine like terms: P + 0.5P = 1.5P
1.5P = 120 + -0.5P + 0.5P

Combine like terms: -0.5P + 0.5P = 0.0
1.5P = 120 + 0.0
1.5P = 120

Divide each side by '1.5'.
P = 80

Simplifying
P = 80

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