Move to the left side of the equation by subtracting it from both sides.

Add to both sides of the equation.

To remove the radical on the left side of the equation, square both sides of the equation.

Multiply the exponents in .

Apply the power rule and multiply exponents, .

Cancel the common factor of .

Cancel the common factor.

Rewrite the expression.

Simplify.

Raise to the power of .

Add to both sides of the equation.

Add and .

Solve by Factoring square root of x-7=15