7a^2-2=208

Solution for 7a^2-2=208 equation:

Simplifying
7a2 + -2 = 208

Reorder the terms:
-2 + 7a2 = 208

Solving
-2 + 7a2 = 208

Solving for variable 'a'.

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

Add '2' to each side of the equation.
-2 + 2 + 7a2 = 208 + 2

Combine like terms: -2 + 2 = 0
0 + 7a2 = 208 + 2
7a2 = 208 + 2

Combine like terms: 208 + 2 = 210
7a2 = 210

Divide each side by '7'.
a2 = 30

Simplifying
a2 = 30

Take the square root of each side:
a = {-5.477225575, 5.477225575}