7n^2-3=39

Solution for 7n^2-3=39 equation:

Simplifying
7n2 + -3 = 39

Reorder the terms:
-3 + 7n2 = 39

Solving
-3 + 7n2 = 39

Solving for variable 'n'.

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

Add '3' to each side of the equation.
-3 + 3 + 7n2 = 39 + 3

Combine like terms: -3 + 3 = 0
0 + 7n2 = 39 + 3
7n2 = 39 + 3

Combine like terms: 39 + 3 = 42
7n2 = 42

Divide each side by '7'.
n2 = 6

Simplifying
n2 = 6

Take the square root of each side:
n = {-2.449489743, 2.449489743}