x^2-3x-c=0

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Solution for x^2-3x-c=0 equation:


Simplifying
x2 + -3x + -1c = 0

Reorder the terms:
-1c + -3x + x2 = 0

Solving
-1c + -3x + x2 = 0

Solving for variable 'c'.

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

Add '3x' to each side of the equation.
-1c + -3x + 3x + x2 = 0 + 3x

Combine like terms: -3x + 3x = 0
-1c + 0 + x2 = 0 + 3x
-1c + x2 = 0 + 3x
Remove the zero:
-1c + x2 = 3x

Add '-1x2' to each side of the equation.
-1c + x2 + -1x2 = 3x + -1x2

Combine like terms: x2 + -1x2 = 0
-1c + 0 = 3x + -1x2
-1c = 3x + -1x2

Divide each side by '-1'.
c = -3x + x2

Simplifying
c = -3x + x2

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