9x^2+12x-13=11-7x

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Solution for 9x^2+12x-13=11-7x equation: 


Simplifying
9x2 + 12x + -13 = 11 + -7x

Reorder the terms:
-13 + 12x + 9x2 = 11 + -7x

Solving
-13 + 12x + 9x2 = 11 + -7x

Solving for variable 'x'.

Reorder the terms:
-13 + -11 + 12x + 7x + 9x2 = 11 + -7x + -11 + 7x

Combine like terms: -13 + -11 = -24
-24 + 12x + 7x + 9x2 = 11 + -7x + -11 + 7x

Combine like terms: 12x + 7x = 19x
-24 + 19x + 9x2 = 11 + -7x + -11 + 7x

Reorder the terms:
-24 + 19x + 9x2 = 11 + -11 + -7x + 7x

Combine like terms: 11 + -11 = 0
-24 + 19x + 9x2 = 0 + -7x + 7x
-24 + 19x + 9x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
-24 + 19x + 9x2 = 0

Factor a trinomial.
(-3 + -1x)(8 + -9x) = 0


Subproblem 1
Set the factor '(-3 + -1x)' equal to zero and attempt to solve:

Simplifying
-3 + -1x = 0

Solving
-3 + -1x = 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 + -1x = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -1x = 0 + 3
-1x = 0 + 3

Combine like terms: 0 + 3 = 3
-1x = 3

Divide each side by '-1'.
x = -3

Simplifying
x = -3

Subproblem 2
Set the factor '(8 + -9x)' equal to zero and attempt to solve:

Simplifying
8 + -9x = 0

Solving
8 + -9x = 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 + -9x = 0 + -8

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

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

Divide each side by '-9'.
x = 0.8888888889

Simplifying
x = 0.8888888889
Solution
x = {-3, 0.8888888889}

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