x^2+11x+18=3x+3

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Solution for x^2+11x+18=3x+3 equation:


Simplifying
x2 + 11x + 18 = 3x + 3

Reorder the terms:
18 + 11x + x2 = 3x + 3

Reorder the terms:
18 + 11x + x2 = 3 + 3x

Solving
18 + 11x + x2 = 3 + 3x

Solving for variable 'x'.

Reorder the terms:
18 + -3 + 11x + -3x + x2 = 3 + 3x + -3 + -3x

Combine like terms: 18 + -3 = 15
15 + 11x + -3x + x2 = 3 + 3x + -3 + -3x

Combine like terms: 11x + -3x = 8x
15 + 8x + x2 = 3 + 3x + -3 + -3x

Reorder the terms:
15 + 8x + x2 = 3 + -3 + 3x + -3x

Combine like terms: 3 + -3 = 0
15 + 8x + x2 = 0 + 3x + -3x
15 + 8x + x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
15 + 8x + x2 = 0

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

Subproblem 1

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 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 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 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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