First, we should the leave the variable
on the left side of the equation.
Divide both sides by
![4.](https://img.qammunity.org/2023/formulas/mathematics/high-school/io985zlwp1dkii9v452o5gm3jws73y7kw4.png)
Conclusion:
Consequently, the element
in the given set is the only real solution of this equation. What we need to do in such questions is to leave the unknown alone. Since the power of the variable
of our unknown is
we can only find
root, respectively.