Question 981892: Which of the ordered pairs
(3, 1), (0, –4), (–4, 0), (–3, –7)are solutions for the equation x – y = 4?
Answer by ikleyn(52784)   (Show Source):
You can put this solution on YOUR website!
The pair (x,y) = (3,1) gives x - y = 3-1 = 2.
The pair (x,y) = (0,-4) gives x - y = 0-(-4) = 4.
The pair (x,y) = (-4,0) gives x - y = -4-0 = -4.
The pair (x,y) = (-3,-7) gives x - y = -3-(-7) = 7-3 = 4.
Answer. Two pairs (x,y) = (0,-4) and (x,y) = (-3,-7) give x - y = 4.
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