Posted by jill on Sunday, November 6, 2011 at 8:28pm.
divide by o
correct? thenk you
math - Anonymous, Sunday, November 6, 2011 at 8:35pm
undefined not 0
math - Steve, Monday, November 7, 2011 at 11:44am
If you're trying to find k, why divide by 0? You divide by the coefficient of k, which is -1.
-k/(-1) = 287.658/(-1)
k = -287.658
Or, to avoid any division at all, just swap sides of the = sign:
-k + k = 287.658 + k
0 = 287.68 + k
-287.658 = 287.658 + k - 287.658
-287.658 = k
You could probably have done that in your head, but I wanted to show the underlying machinery that makes it all happen.
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