For this case we have a system of two equations with two unknowns:

We follow the steps below:
We add the equations:

We divide between 9 on both sides of the equation:

We substitute the value of "x" in the first equation and find the value of y:

Thus, the solution of the system is: (3, -1)
Answer:
(3, -1)
Answer:
Resend your question with image. Hope you understand me
Since thousands has 3 zeros, you would just write 10 with 3 zeros. The answer would be 10,000.
Answer:
By doing process by process