The solution is "All Real Numbers."
First let's distribute on the left side:
On the left side, we now have
We now need to distribute the
Combine like terms once again. As with the left side, the only like term is the
Now that we've simplified both sides, we can work with the equation, finally. When simplified we get:
Notice how they are equivalent values. This means any value plugged into this system will result in the same value on the left and right sides. Always. Therefore, this equation has infinite solutions for real numbers.
Solution: All Real Numbers
I hope that helps!