21n^2-59+40=0

Solution for 21n^2-59+40=0 equation:

Simplifying
21n2 + -59 + 40 = 0

Reorder the terms:
-59 + 40 + 21n2 = 0

Combine like terms: -59 + 40 = -19
-19 + 21n2 = 0

Solving
-19 + 21n2 = 0

Solving for variable 'n'.

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

Add '19' to each side of the equation.
-19 + 19 + 21n2 = 0 + 19

Combine like terms: -19 + 19 = 0
0 + 21n2 = 0 + 19
21n2 = 0 + 19

Combine like terms: 0 + 19 = 19
21n2 = 19

Divide each side by '21'.
n2 = 0.9047619048

Simplifying
n2 = 0.9047619048

Take the square root of each side:
n = {-0.951189731, 0.951189731}