7r^2-35=0

Solution for 7r^2-35=0 equation:

Simplifying
7r2 + -35 = 0

Reorder the terms:
-35 + 7r2 = 0

Solving
-35 + 7r2 = 0

Solving for variable 'r'.

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

Add '35' to each side of the equation.
-35 + 35 + 7r2 = 0 + 35

Combine like terms: -35 + 35 = 0
0 + 7r2 = 0 + 35
7r2 = 0 + 35

Combine like terms: 0 + 35 = 35
7r2 = 35

Divide each side by '7'.
r2 = 5

Simplifying
r2 = 5

Take the square root of each side:
r = {-2.236067978, 2.236067978}