SOLUTION: solve the system of equatuins by graphing then classify 8x-7y=21 7y-8x=-21

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Question 220841: solve the system of equatuins by graphing then classify
8x-7y=21
7y-8x=-21
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
8x-7y=21
-7Y=-8X+21
Y=-8X/-7+21/-7
Y=8X/7-3 (RED LINE)
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7y-8x=-21
7Y=8X-21
Y=8X/7-21/7
Y=8X/7-3 (GREEN LINE)
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+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+8x%2F7+-3%2C+8x%2F7+-3%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions 8x/7 -3 and 8x/7 -3).
THESE LINES ARE COINCIDENT OR IDENTICAL.