x^2+8x=22-x

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Solution for x^2+8x=22-x equation:


Simplifying
x2 + 8x = 22 + -1x

Reorder the terms:
8x + x2 = 22 + -1x

Solving
8x + x2 = 22 + -1x

Solving for variable 'x'.

Reorder the terms:
-22 + 8x + x + x2 = 22 + -1x + -22 + x

Combine like terms: 8x + x = 9x
-22 + 9x + x2 = 22 + -1x + -22 + x

Reorder the terms:
-22 + 9x + x2 = 22 + -22 + -1x + x

Combine like terms: 22 + -22 = 0
-22 + 9x + x2 = 0 + -1x + x
-22 + 9x + x2 = -1x + x

Combine like terms: -1x + x = 0
-22 + 9x + x2 = 0

Factor a trinomial.
(-11 + -1x)(2 + -1x) = 0

Subproblem 1

Set the factor '(-11 + -1x)' equal to zero and attempt to solve: Simplifying -11 + -1x = 0 Solving -11 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -1x = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -1x = 0 + 11 -1x = 0 + 11 Combine like terms: 0 + 11 = 11 -1x = 11 Divide each side by '-1'. x = -11 Simplifying x = -11

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 = {-11, 2}

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