# need this problem sloved

• Oct 16th 2006, 07:38 PM
troy boswell
need this problem sloved
6/14=7/x-3 slove each proportion, round to nearest hundredth
• Oct 16th 2006, 07:42 PM
Jameson
Quote:

Originally Posted by troy boswell
6/14=7/x-3 slove each proportion, round to nearest hundredth

Is that 6/14=7/(x-3) or 6/14=(7/x)-3?
• Oct 16th 2006, 07:51 PM
troy boswell
no it is suppose to 6 over 14 = 7 over x-3 proportion but i don't know how to write fractions on the computer help.
• Oct 17th 2006, 05:26 AM
topsquark
Quote:

Originally Posted by troy boswell
no it is suppose to 6 over 14 = 7 over x-3 proportion but i don't know how to write fractions on the computer help.

Note the format the Jameson used:
6/14 = 7/(x - 3)

First reduce the fraction on the LHS:
3/7 = 7/(x - 3)

Multiply both sides of the equation by 7(x - 3):
7(x - 3)*(3/7) = 7(x - 3)*[7/(x - 3)]

3(x - 3) = 7*7

3x - 9 = 49

3x = 58

x = 16

Since x is not equal to 3 (this is prohibited by the original expression) this solution is valid.

-Dan