7n^2-45n=-18

Solution for 7n^2-45n=-18 equation:

Simplifying
7n2 + -45n = -18

Reorder the terms:
-45n + 7n2 = -18

Solving
-45n + 7n2 = -18

Solving for variable 'n'.

Reorder the terms:
18 + -45n + 7n2 = -18 + 18

Combine like terms: -18 + 18 = 0
18 + -45n + 7n2 = 0

Factor a trinomial.
(3 + -7n)(6 + -1n) = 0

Subproblem 1
Set the factor '(3 + -7n)' equal to zero and attempt to solve:

Simplifying
3 + -7n = 0

Solving
3 + -7n = 0

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

Add '-3' to each side of the equation.
3 + -3 + -7n = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -7n = 0 + -3
-7n = 0 + -3

Combine like terms: 0 + -3 = -3
-7n = -3

Divide each side by '-7'.
n = 0.4285714286

Simplifying
n = 0.4285714286
Subproblem 2
Set the factor '(6 + -1n)' equal to zero and attempt to solve:

Simplifying
6 + -1n = 0

Solving
6 + -1n = 0

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

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

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

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

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

Simplifying
n = 6
Solution
n = {0.4285714286, 6}