r^2+7r=-6

Solution for r^2+7r=-6 equation:

Simplifying
r2 + 7r = -6

Reorder the terms:
7r + r2 = -6

Solving
7r + r2 = -6

Solving for variable 'r'.

Reorder the terms:
6 + 7r + r2 = -6 + 6

Combine like terms: -6 + 6 = 0
6 + 7r + r2 = 0

Factor a trinomial.
(6 + r)(1 + r) = 0

Subproblem 1
Set the factor '(6 + r)' equal to zero and attempt to solve:

Simplifying
6 + r = 0

Solving
6 + r = 0

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

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

Combine like terms: 6 + -6 = 0
0 + r = 0 + -6
r = 0 + -6

Combine like terms: 0 + -6 = -6
r = -6

Simplifying
r = -6
Subproblem 2
Set the factor '(1 + r)' equal to zero and attempt to solve:

Simplifying
1 + r = 0

Solving
1 + r = 0

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

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

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

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

Simplifying
r = -1
Solution
r = {-6, -1}