7n^2+42=35n

Solution for 7n^2+42=35n equation:

Simplifying
7n2 + 42 = 35n

Reorder the terms:
42 + 7n2 = 35n

Solving
42 + 7n2 = 35n

Solving for variable 'n'.

Reorder the terms:
42 + -35n + 7n2 = 35n + -35n

Combine like terms: 35n + -35n = 0
42 + -35n + 7n2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(6 + -5n + n2) = 0

Factor a trinomial.
7((2 + -1n)(3 + -1n)) = 0

Ignore the factor 7.
Subproblem 1
Set the factor '(2 + -1n)' equal to zero and attempt to solve:

Simplifying
2 + -1n = 0

Solving
2 + -1n = 0

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

Add '-2' to each side of the equation.
2 + -2 + -1n = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1n = 0 + -2
-1n = 0 + -2

Combine like terms: 0 + -2 = -2
-1n = -2

Divide each side by '-1'.
n = 2

Simplifying
n = 2
Subproblem 2
Set the factor '(3 + -1n)' equal to zero and attempt to solve:

Simplifying
3 + -1n = 0

Solving
3 + -1n = 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 + -1n = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1n = 0 + -3
-1n = 0 + -3

Combine like terms: 0 + -3 = -3
-1n = -3

Divide each side by '-1'.
n = 3

Simplifying
n = 3
Solution
n = {2, 3}