What you can do to solve this question is make a system of equations.
Doing this, you get:
x+ y = 83
x - y = 17
Now, you can add the two equations together, as y will cancel out, and then solve for x.
You get 2x = 100
Divide by 2 on both sides, to get x = 50.
Then, use the value of x to solve for y using the equations we have already created.
You can use either of the two equations.
In this case, we will use the first one.
Substitute the value of x into the equation, and you get:
50 + y = 83
Subtract by 50 on both sides, to get y = 33.
The two answers you get are 50 and 33.
However, you should always check your answers by plugging them into the equations.
For the 1st equation: x + y = 83
50 + 33 = 83, Checks out.
For the 2nd equation: x - y = 17
50 - 33 = 17, Checks out.
Now you can be confident of your answers, 50 and 33.
Hope this helped!
