7x^2-6=15

Solution for 7x^2-6=15 equation:

Simplifying
7x2 + -6 = 15

Reorder the terms:
-6 + 7x2 = 15

Solving
-6 + 7x2 = 15

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 7x2 = 15 + 6

Combine like terms: -6 + 6 = 0
0 + 7x2 = 15 + 6
7x2 = 15 + 6

Combine like terms: 15 + 6 = 21
7x2 = 21

Divide each side by '7'.
x2 = 3

Simplifying
x2 = 3

Take the square root of each side:
x = {-1.732050808, 1.732050808}