SOLUTION: 1/x-8/21=3/7x Thank you!

Question 57357: 1/x-8/21=3/7x Thank you!
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!

:
It's helpful to mult equation thru by the common denominator to get rid of the pesky fractions. 21x would be a good common denominator:

That would leave you with:
21(1) - x(8) = 3(3)
:
21 - 8x + 9
:
subtract 21 from both sides:
21 - 21 - 8x = 9 - 21
-8x = -12
:
Divide both sides by -8 and you ave
+1x = -12/-8
x = +3/2
:
:
To check our solution in the original equation let's use 1.5 for 3/2

.67 - .381 ~.289 close enough for checking
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