(2x-8)(x+7)=11x+7

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Solution for (2x-8)(x+7)=11x+7 equation:


Simplifying
(2x + -8)(x + 7) = 11x + 7

Reorder the terms:
(-8 + 2x)(x + 7) = 11x + 7

Reorder the terms:
(-8 + 2x)(7 + x) = 11x + 7

Multiply (-8 + 2x) * (7 + x)
(-8(7 + x) + 2x * (7 + x)) = 11x + 7
((7 * -8 + x * -8) + 2x * (7 + x)) = 11x + 7
((-56 + -8x) + 2x * (7 + x)) = 11x + 7
(-56 + -8x + (7 * 2x + x * 2x)) = 11x + 7
(-56 + -8x + (14x + 2x2)) = 11x + 7

Combine like terms: -8x + 14x = 6x
(-56 + 6x + 2x2) = 11x + 7

Reorder the terms:
-56 + 6x + 2x2 = 7 + 11x

Solving
-56 + 6x + 2x2 = 7 + 11x

Solving for variable 'x'.

Reorder the terms:
-56 + -7 + 6x + -11x + 2x2 = 7 + 11x + -7 + -11x

Combine like terms: -56 + -7 = -63
-63 + 6x + -11x + 2x2 = 7 + 11x + -7 + -11x

Combine like terms: 6x + -11x = -5x
-63 + -5x + 2x2 = 7 + 11x + -7 + -11x

Reorder the terms:
-63 + -5x + 2x2 = 7 + -7 + 11x + -11x

Combine like terms: 7 + -7 = 0
-63 + -5x + 2x2 = 0 + 11x + -11x
-63 + -5x + 2x2 = 11x + -11x

Combine like terms: 11x + -11x = 0
-63 + -5x + 2x2 = 0

Factor a trinomial.
(-9 + -2x)(7 + -1x) = 0

Subproblem 1

Set the factor '(-9 + -2x)' equal to zero and attempt to solve: Simplifying -9 + -2x = 0 Solving -9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -2x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -2x = 0 + 9 -2x = 0 + 9 Combine like terms: 0 + 9 = 9 -2x = 9 Divide each side by '-2'. x = -4.5 Simplifying x = -4.5

Subproblem 2

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {-4.5, 7}

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