x^2-2x+(c-4)=0

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Solution for x^2-2x+(c-4)=0 equation:


Simplifying
x2 + -2x + (c + -4) = 0

Reorder the terms:
x2 + -2x + (-4 + c) = 0

Remove parenthesis around (-4 + c)
x2 + -2x + -4 + c = 0

Reorder the terms:
-4 + c + -2x + x2 = 0

Solving
-4 + c + -2x + x2 = 0

Solving for variable 'c'.

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

Add '4' to each side of the equation.
-4 + c + -2x + 4 + x2 = 0 + 4

Reorder the terms:
-4 + 4 + c + -2x + x2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + c + -2x + x2 = 0 + 4
c + -2x + x2 = 0 + 4

Combine like terms: 0 + 4 = 4
c + -2x + x2 = 4

Add '2x' to each side of the equation.
c + -2x + 2x + x2 = 4 + 2x

Combine like terms: -2x + 2x = 0
c + 0 + x2 = 4 + 2x
c + x2 = 4 + 2x

Add '-1x2' to each side of the equation.
c + x2 + -1x2 = 4 + 2x + -1x2

Combine like terms: x2 + -1x2 = 0
c + 0 = 4 + 2x + -1x2
c = 4 + 2x + -1x2

Simplifying
c = 4 + 2x + -1x2

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