x^2-8x-15=-5x+3

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Solution for x^2-8x-15=-5x+3 equation: 


Simplifying
x2 + -8x + -15 = -5x + 3

Reorder the terms:
-15 + -8x + x2 = -5x + 3

Reorder the terms:
-15 + -8x + x2 = 3 + -5x

Solving
-15 + -8x + x2 = 3 + -5x

Solving for variable 'x'.

Reorder the terms:
-15 + -3 + -8x + 5x + x2 = 3 + -5x + -3 + 5x

Combine like terms: -15 + -3 = -18
-18 + -8x + 5x + x2 = 3 + -5x + -3 + 5x

Combine like terms: -8x + 5x = -3x
-18 + -3x + x2 = 3 + -5x + -3 + 5x

Reorder the terms:
-18 + -3x + x2 = 3 + -3 + -5x + 5x

Combine like terms: 3 + -3 = 0
-18 + -3x + x2 = 0 + -5x + 5x
-18 + -3x + x2 = -5x + 5x

Combine like terms: -5x + 5x = 0
-18 + -3x + x2 = 0

Factor a trinomial.
(-3 + -1x)(6 + -1x) = 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 '(6 + -1x)' equal to zero and attempt to solve:

Simplifying
6 + -1x = 0

Solving
6 + -1x = 0

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

Add '-6' to each side of the equation.
6 + -6 + -1x = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -1x = 0 + -6
-1x = 0 + -6

Combine like terms: 0 + -6 = -6
-1x = -6

Divide each side by '-1'.
x = 6

Simplifying
x = 6
Solution
x = {-3, 6}

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