If A || B and B Y, then__ A. X|A B. A|Y C. X||Y D. A||Y
1 answer:
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If my handwriting sucks; (-2x+7y=3
3x-7y=-1)
=
(7y=3+2x
3x-7y=-1)= 2
3x2-7y=-1=1
Answer: (x,y) = (2,1)
3x-7y=-1)
=
(7y=3+2x
3x-7y=-1)= 2
3x2-7y=-1=1
Answer: (x,y) = (2,1)