x^2-(3x+6)=-7-x

Solution for x^2-(3x+6)=-7-x equation:

Simplifying
x2 + -1(3x + 6) = -7 + -1x

Reorder the terms:
x2 + -1(6 + 3x) = -7 + -1x
x2 + (6 * -1 + 3x * -1) = -7 + -1x
x2 + (-6 + -3x) = -7 + -1x

Reorder the terms:
-6 + -3x + x2 = -7 + -1x

Solving
-6 + -3x + x2 = -7 + -1x

Solving for variable 'x'.

Reorder the terms:
-6 + 7 + -3x + x + x2 = -7 + -1x + 7 + x

Combine like terms: -6 + 7 = 1
1 + -3x + x + x2 = -7 + -1x + 7 + x

Combine like terms: -3x + x = -2x
1 + -2x + x2 = -7 + -1x + 7 + x

Reorder the terms:
1 + -2x + x2 = -7 + 7 + -1x + x

Combine like terms: -7 + 7 = 0
1 + -2x + x2 = 0 + -1x + x
1 + -2x + x2 = -1x + x

Combine like terms: -1x + x = 0
1 + -2x + x2 = 0

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

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

Simplifying
1 + -1x = 0

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

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

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

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

Simplifying
x = 1
Subproblem 2
Set the factor '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

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

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

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

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

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