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17 votes
X+y=8
x-y=6
O A. (6,0)
OB. (8,2)
O C. (7,1)
OD. (9,3)

1 Answer

12 votes
The answer is C. (7,1). You can add the two equations together and the y’s will cancel out since they are opposite signs and you are left with 2x=14. Then from there you can divide both sides by 2 and get x=7. Now at this point only one option has 7 as the x-value, but if you want to solve for y you can plug 7 I or one of the equations for x, ex: 7-y=6, and you would get y=1 as your answer which fits with option C.
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