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September 30, 2014

September 30, 2014

Posted by **Anonymous** on Thursday, September 16, 2010 at 11:10pm.

10/(5+x)= 12

so far i have tried to multiply both sides by x+5 but then my answer is x = 4.16... and im thinking its wrong. Thanks in advance and if possible answer with a explaination would be greatly appreciated so i can so similar problems by myself

- algebra -
**Ms. Sue**, Thursday, September 16, 2010 at 11:21pm10/(5+x)= 12

10 = 12(5+x)

10 = 60 + 12x

10 - 60 = 12x

-50 = 12x

-4.16666 = x

-4.17 = x

I got about the same answer. :-)

Change the signs and round off.

If you substitute -4.1666 for x in the equation, you'll find it's right.

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