24+3x-x^2=x+9

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Solution for 24+3x-x^2=x+9 equation:


Simplifying
24 + 3x + -1x2 = x + 9

Reorder the terms:
24 + 3x + -1x2 = 9 + x

Solving
24 + 3x + -1x2 = 9 + x

Solving for variable 'x'.

Reorder the terms:
24 + -9 + 3x + -1x + -1x2 = 9 + x + -9 + -1x

Combine like terms: 24 + -9 = 15
15 + 3x + -1x + -1x2 = 9 + x + -9 + -1x

Combine like terms: 3x + -1x = 2x
15 + 2x + -1x2 = 9 + x + -9 + -1x

Reorder the terms:
15 + 2x + -1x2 = 9 + -9 + x + -1x

Combine like terms: 9 + -9 = 0
15 + 2x + -1x2 = 0 + x + -1x
15 + 2x + -1x2 = x + -1x

Combine like terms: x + -1x = 0
15 + 2x + -1x2 = 0

Factor a trinomial.
(5 + -1x)(3 + x) = 0

Subproblem 1

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

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 = {5, -3}

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