x^2+16x+12=7x+4

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Solution for x^2+16x+12=7x+4 equation: 


Simplifying
x2 + 16x + 12 = 7x + 4

Reorder the terms:
12 + 16x + x2 = 7x + 4

Reorder the terms:
12 + 16x + x2 = 4 + 7x

Solving
12 + 16x + x2 = 4 + 7x

Solving for variable 'x'.

Reorder the terms:
12 + -4 + 16x + -7x + x2 = 4 + 7x + -4 + -7x

Combine like terms: 12 + -4 = 8
8 + 16x + -7x + x2 = 4 + 7x + -4 + -7x

Combine like terms: 16x + -7x = 9x
8 + 9x + x2 = 4 + 7x + -4 + -7x

Reorder the terms:
8 + 9x + x2 = 4 + -4 + 7x + -7x

Combine like terms: 4 + -4 = 0
8 + 9x + x2 = 0 + 7x + -7x
8 + 9x + x2 = 7x + -7x

Combine like terms: 7x + -7x = 0
8 + 9x + x2 = 0

Factor a trinomial.
(8 + x)(1 + x) = 0


Subproblem 1
Set the factor '(8 + x)' equal to zero and attempt to solve:

Simplifying
8 + x = 0

Solving
8 + x = 0

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

Add '-8' to each side of the equation.
8 + -8 + x = 0 + -8

Combine like terms: 8 + -8 = 0
0 + x = 0 + -8
x = 0 + -8

Combine like terms: 0 + -8 = -8
x = -8

Simplifying
x = -8

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 = {-8, -1}

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