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OpenStudy (anonymous):
Find dy/dx in terms of x and y if 7 x y + 4 x + y = 12
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OpenStudy (anonymous):
(7x)(dy/dx) + 7y + 4 + dy/dx = 0 (7x)(dy/dx) + dy/dx = -7y-4 Factor out dy/dx, you get dy/dx = (-7y-4)/(7x+1)
OpenStudy (anonymous):
your welcome.
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