3x^2-18x=-4x^2-5x-6

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Solution for 3x^2-18x=-4x^2-5x-6 equation:


Simplifying
3x2 + -18x = -4x2 + -5x + -6

Reorder the terms:
-18x + 3x2 = -4x2 + -5x + -6

Reorder the terms:
-18x + 3x2 = -6 + -5x + -4x2

Solving
-18x + 3x2 = -6 + -5x + -4x2

Solving for variable 'x'.

Reorder the terms:
6 + -18x + 5x + 3x2 + 4x2 = -6 + -5x + -4x2 + 6 + 5x + 4x2

Combine like terms: -18x + 5x = -13x
6 + -13x + 3x2 + 4x2 = -6 + -5x + -4x2 + 6 + 5x + 4x2

Combine like terms: 3x2 + 4x2 = 7x2
6 + -13x + 7x2 = -6 + -5x + -4x2 + 6 + 5x + 4x2

Reorder the terms:
6 + -13x + 7x2 = -6 + 6 + -5x + 5x + -4x2 + 4x2

Combine like terms: -6 + 6 = 0
6 + -13x + 7x2 = 0 + -5x + 5x + -4x2 + 4x2
6 + -13x + 7x2 = -5x + 5x + -4x2 + 4x2

Combine like terms: -5x + 5x = 0
6 + -13x + 7x2 = 0 + -4x2 + 4x2
6 + -13x + 7x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
6 + -13x + 7x2 = 0

Factor a trinomial.
(6 + -7x)(1 + -1x) = 0

Subproblem 1

Set the factor '(6 + -7x)' equal to zero and attempt to solve: Simplifying 6 + -7x = 0 Solving 6 + -7x = 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 + -7x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -7x = 0 + -6 -7x = 0 + -6 Combine like terms: 0 + -6 = -6 -7x = -6 Divide each side by '-7'. x = 0.8571428571 Simplifying x = 0.8571428571

Subproblem 2

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

Solution

x = {0.8571428571, 1}

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