6x^2+18x-c=0

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Solution for 6x^2+18x-c=0 equation:


Simplifying
6x2 + 18x + -1c = 0

Reorder the terms:
-1c + 18x + 6x2 = 0

Solving
-1c + 18x + 6x2 = 0

Solving for variable 'c'.

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

Add '-18x' to each side of the equation.
-1c + 18x + -18x + 6x2 = 0 + -18x

Combine like terms: 18x + -18x = 0
-1c + 0 + 6x2 = 0 + -18x
-1c + 6x2 = 0 + -18x
Remove the zero:
-1c + 6x2 = -18x

Add '-6x2' to each side of the equation.
-1c + 6x2 + -6x2 = -18x + -6x2

Combine like terms: 6x2 + -6x2 = 0
-1c + 0 = -18x + -6x2
-1c = -18x + -6x2

Divide each side by '-1'.
c = 18x + 6x2

Simplifying
c = 18x + 6x2

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