7n^2+9n=0

Solution for 7n^2+9n=0 equation:

Simplifying
7n2 + 9n = 0

Reorder the terms:
9n + 7n2 = 0

Solving
9n + 7n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), 'n'.
n(9 + 7n) = 0

Subproblem 1
Set the factor 'n' equal to zero and attempt to solve:

Simplifying
n = 0

Solving
n = 0

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

Simplifying
n = 0
Subproblem 2
Set the factor '(9 + 7n)' equal to zero and attempt to solve:

Simplifying
9 + 7n = 0

Solving
9 + 7n = 0

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

Add '-9' to each side of the equation.
9 + -9 + 7n = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 7n = 0 + -9
7n = 0 + -9

Combine like terms: 0 + -9 = -9
7n = -9

Divide each side by '7'.
n = -1.285714286

Simplifying
n = -1.285714286
Solution
n = {0, -1.285714286}