8x^2-2x=7x^2-6x+12

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Solution for 8x^2-2x=7x^2-6x+12 equation:


Simplifying
8x2 + -2x = 7x2 + -6x + 12

Reorder the terms:
-2x + 8x2 = 7x2 + -6x + 12

Reorder the terms:
-2x + 8x2 = 12 + -6x + 7x2

Solving
-2x + 8x2 = 12 + -6x + 7x2

Solving for variable 'x'.

Reorder the terms:
-12 + -2x + 6x + 8x2 + -7x2 = 12 + -6x + 7x2 + -12 + 6x + -7x2

Combine like terms: -2x + 6x = 4x
-12 + 4x + 8x2 + -7x2 = 12 + -6x + 7x2 + -12 + 6x + -7x2

Combine like terms: 8x2 + -7x2 = 1x2
-12 + 4x + 1x2 = 12 + -6x + 7x2 + -12 + 6x + -7x2

Reorder the terms:
-12 + 4x + 1x2 = 12 + -12 + -6x + 6x + 7x2 + -7x2

Combine like terms: 12 + -12 = 0
-12 + 4x + 1x2 = 0 + -6x + 6x + 7x2 + -7x2
-12 + 4x + 1x2 = -6x + 6x + 7x2 + -7x2

Combine like terms: -6x + 6x = 0
-12 + 4x + 1x2 = 0 + 7x2 + -7x2
-12 + 4x + 1x2 = 7x2 + -7x2

Combine like terms: 7x2 + -7x2 = 0
-12 + 4x + 1x2 = 0

Factor a trinomial.
(-6 + -1x)(2 + -1x) = 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 '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-6, 2}

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