x^2-0.8x+c=0

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Solution for x^2-0.8x+c=0 equation: 


Simplifying
x2 + -0.8x + c = 0

Reorder the terms:
c + -0.8x + x2 = 0

Solving
c + -0.8x + x2 = 0

Solving for variable 'c'.

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

Add '0.8x' to each side of the equation.
c + -0.8x + 0.8x + x2 = 0 + 0.8x

Combine like terms: -0.8x + 0.8x = 0.0
c + 0.0 + x2 = 0 + 0.8x
c + x2 = 0 + 0.8x
Remove the zero:
c + x2 = 0.8x

Add '-1x2' to each side of the equation.
c + x2 + -1x2 = 0.8x + -1x2

Combine like terms: x2 + -1x2 = 0
c + 0 = 0.8x + -1x2
c = 0.8x + -1x2

Simplifying
c = 0.8x + -1x2

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