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OpenStudy (anonymous):
If y varies directly with x and y = -7 when x = -1, find x when y = -84.
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OpenStudy (anonymous):
y=kx -7=k *-1 solve for k -84= k*x solve for x. Remember k should be a number cuzz you olved for it :D
OpenStudy (anonymous):
-7=k*-1 -7/-1=k k=7 so -84=7*x -84/7=x x=-12
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