Let the numbers be x and y. Set up our givens:
x + x + y - y = 83 + 17
The y-terms cancel out:
2x = 100
Divide each side by 2:
2x/2= 100/2
x = 50
Plug x = 50 into equation (1)
50 + y = 83
Subtract 50 from each side:
50 - 50 + y = 83 - 50
Cancel the 50 on the left side:
y = 33
So our two numbers (x, y) = (33, 50)
- x + y = 83
- x - y = 17
x + x + y - y = 83 + 17
The y-terms cancel out:
2x = 100
Divide each side by 2:
2x/2= 100/2
x = 50
Plug x = 50 into equation (1)
50 + y = 83
Subtract 50 from each side:
50 - 50 + y = 83 - 50
Cancel the 50 on the left side:
y = 33
So our two numbers (x, y) = (33, 50)
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