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$Old$ June 21st, 2008, 05:48 PM

drgoose91 $drgoose91 is offline$

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$Default$ Make Y the subject

Hey everyone, does anyone know how to make Y the subject in this equation
14x-7y=21

Thanks, I knew all this but now we're doing it again and I can't seem to remmember

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$Old$ June 21st, 2008, 06:37 PM

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Originally Posted by drgoose91 $View Post$

Hey everyone, does anyone know how to make Y the subject in this equation
14x-7y=21

Thanks, I knew all this but now we're doing it again and I can't seem to remmember

$14x - 7y = 21$

$-14x + 14x - 7y = -14x + 21$

$-7y = -14x + 21$

$\frac{-7y}{-7} = \frac{-14x + 21}{-7}$

$y = 2x - 3$

-Dan

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$Old$ June 21st, 2008, 06:48 PM

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