Answer:
x=100 y=50
Explanation:
First we need to subtract equation x-y=50 from x+2y=200
x will eliminate each other since they are both positive, however y will add up because we are subtracting negative y from 2y, two negative means positive. We also need to subtract 50 from 200
Overall, in the end we should get the equation 3y=150, from here we can easily get the y value by dividing both sides by 3, which will give us y=50
From here we we can use the y value to calculate the x value. We know that x-y=50, now that we know the y value, we can turn this equation into x-50=50, plus 50 on both sides will give us x=100
Hope I was of any help, let me know if you have any questions