Answer:

х€{ 5,1 }

Step-by-step explanation:

In order to solve this non-linear equation, we need to move all the terms to the left side.

In our example,

- term , will be moved to the left side.

Notice that a term changes sign when it 'moves' from one side of the equation to the other.

We need to get rid of expression parentheses.

If there is a negative sign in front of it, each term within the expression changes sign.

Otherwise, the expression remains unchanged.

In our example, there are no negative expressions