SOLUTION: 1-(7/b)=-48b/b^2+7b 7 is over b -48b is over b^2 + 7b

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Question 202149: 1-(7/b)=-48b/b^2+7b
7 is over b
-48b is over b^2 + 7b
Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

1-7%2Fb=%28-48b%29%2F%28b%5E2%2B7b%29 = 1%2F1-7%2Fb=%28-48b%29%2F%28b%5E2%2B7b%29


Multiply by LCD (b%28b%2B7%29) b%5E2%2B7b-7%28b%2B7%29=-48b

b%5E2%2B7b-7b-49=-48b

b%5E2%2B48b-49=0

(b + 49)(b – 1) = 0

b = highlight_green%28-49%29 or highlight_green%281%29

highlight%28Check%29:

b = - 49
1-7%2Fb+=+%28-48b%29%2F%28b%5E2%2B7b%29 or 1%2F1-7%2F-49+=+%28-48%2A-49%29%2F%28-49%5E2%2B7%28-49%29%29 or %28-49-7%29%2F-49=%28-48%2A-49%29%2F%28%28-49%29%5E2-343%29

%28-56%29%2F-49=2352%2F%282401-343%29 or 8%2F7=2352%2F2058

8%2F7=8%2F7 (TRUE)

b = 1
1-7%2Fb+=+%28-48b%29%2F%28b%5E2%2B7b%29 or 1-7%2F1+=+%28-48%29%2F%281%2B7%29 or 1-7+=+%28-48%29%2F8
- 6 = - 6 (TRUE)