5x^2+3x=6x^2-18

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Solution for 5x^2+3x=6x^2-18 equation:


Simplifying
5x2 + 3x = 6x2 + -18

Reorder the terms:
3x + 5x2 = 6x2 + -18

Reorder the terms:
3x + 5x2 = -18 + 6x2

Solving
3x + 5x2 = -18 + 6x2

Solving for variable 'x'.

Reorder the terms:
18 + 3x + 5x2 + -6x2 = -18 + 6x2 + 18 + -6x2

Combine like terms: 5x2 + -6x2 = -1x2
18 + 3x + -1x2 = -18 + 6x2 + 18 + -6x2

Reorder the terms:
18 + 3x + -1x2 = -18 + 18 + 6x2 + -6x2

Combine like terms: -18 + 18 = 0
18 + 3x + -1x2 = 0 + 6x2 + -6x2
18 + 3x + -1x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
18 + 3x + -1x2 = 0

Factor a trinomial.
(6 + -1x)(3 + x) = 0

Subproblem 1

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Subproblem 2

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Solution

x = {6, -3}

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