The equation $x + x = 2$ can be simplified by combining the like terms on the left-hand side:

$x + x = 2x$

Now the equation becomes:

$2x = 2$

To solve for $x$, divide both sides of the equation by 2:

$x = \frac{2}{2} = 1$

So, the solution is $x = 1$.

Would you like more details on this, or do you have any other questions?

Here are 5 related questions you might explore:

1. What happens if the equation was $3x + x = 8$?
2. How would you solve $2x + 3 = 7$?
3. What is the solution to $4x = 12$?
4. How do you solve an equation like $5x - 3 = 2x + 9$?
5. What happens when the equation has no solution, like $x + 1 = x + 2$?

Tip: Always simplify the equation as much as possible before solving for the variable.