5n^2+35-40=0

Solution for 5n^2+35-40=0 equation:

Simplifying
5n2 + 35 + -40 = 0

Reorder the terms:
35 + -40 + 5n2 = 0

Combine like terms: 35 + -40 = -5
-5 + 5n2 = 0

Solving
-5 + 5n2 = 0

Solving for variable 'n'.

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

Add '5' to each side of the equation.
-5 + 5 + 5n2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 5n2 = 0 + 5
5n2 = 0 + 5

Combine like terms: 0 + 5 = 5
5n2 = 5

Divide each side by '5'.
n2 = 1

Simplifying
n2 = 1

Take the square root of each side:
n = {-1, 1}