x^2+9x+7=3x+2

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Solution for x^2+9x+7=3x+2 equation: 


Simplifying
x2 + 9x + 7 = 3x + 2

Reorder the terms:
7 + 9x + x2 = 3x + 2

Reorder the terms:
7 + 9x + x2 = 2 + 3x

Solving
7 + 9x + x2 = 2 + 3x

Solving for variable 'x'.

Reorder the terms:
7 + -2 + 9x + -3x + x2 = 2 + 3x + -2 + -3x

Combine like terms: 7 + -2 = 5
5 + 9x + -3x + x2 = 2 + 3x + -2 + -3x

Combine like terms: 9x + -3x = 6x
5 + 6x + x2 = 2 + 3x + -2 + -3x

Reorder the terms:
5 + 6x + x2 = 2 + -2 + 3x + -3x

Combine like terms: 2 + -2 = 0
5 + 6x + x2 = 0 + 3x + -3x
5 + 6x + x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
5 + 6x + x2 = 0

Factor a trinomial.
(5 + x)(1 + 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 '(1 + x)' equal to zero and attempt to solve:

Simplifying
1 + x = 0

Solving
1 + x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + x = 0 + -1
x = 0 + -1

Combine like terms: 0 + -1 = -1
x = -1

Simplifying
x = -1
Solution
x = {-5, -1}

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