SOLUTION: Sum of 2 #'s is = 12 and the diff of same #'s is -4

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Question 898832: Sum of 2 #'s is = 12 and the diff of same #'s is -4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A%2BB=12
A-B=-4
Add the equations together,
A%2BB%2BA-B=12-4
2A=8
highlight_green%28A=4%29
Then,
4%2BB=12
highlight_green%28B=8%29