0.5=-2x+81

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Solution for 0.5=-2x+81 equation: 


Simplifying
0.5 = -2x + 81

Reorder the terms:
0.5 = 81 + -2x

Solving
0.5 = 81 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
0.5 + 2x = 81 + -2x + 2x

Combine like terms: -2x + 2x = 0
0.5 + 2x = 81 + 0
0.5 + 2x = 81

Add '-0.5' to each side of the equation.
0.5 + -0.5 + 2x = 81 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + 2x = 81 + -0.5
2x = 81 + -0.5

Combine like terms: 81 + -0.5 = 80.5
2x = 80.5

Divide each side by '2'.
x = 40.25

Simplifying
x = 40.25

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