# formula for the specified variable

• April 28th 2008, 09:10 PM
shannond
formula for the specified variable
solve for y:

6x-2y=18

I got Y= 18-6x
-2

not sure if thats right or if it's a +2?

• April 28th 2008, 09:16 PM
elizsimca
$6x-2y=18$

$-2y=18-6x$

$y=\frac{18-6x}{-2}$

$y=-9+3x$

$y=3x-9$

It should be a negative 2 you divide by...if you divided by positive 2, then you would be left with $-y=\frac{18-6x}{2}$ then you would just end up dividing through by negative one.

Then you can simplify further and divide 18 and 6 by negative two to get rid of the fraction.

Looks good! :)
• April 28th 2008, 09:26 PM
shannond
Thank you so much I wasn't sure if I was on the right track or if I continued on or what you've been a big help
• April 28th 2008, 09:29 PM
elizsimca
no problem! good luck!