Real Life Equation

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
mgrnoble
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Joined: Wed Apr 09, 2014 4:23 pm
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Real Life Equation

Postby mgrnoble » Wed Apr 09, 2014 4:30 pm

I hope someone can help, I have an equation that I need to rearrange to get the value of y:

.43x + 17.25 + (y/(y+65) *10) = 35

I've managed to get to:

Y = 1.975Y + 128.375 - 0.043xy + 2.795x

but now I'm stumped, could anyone help me please?

buddy
Posts: 147
Joined: Sun Feb 22, 2009 10:05 pm
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Re: Real Life Equation

Postby buddy » Wed Apr 09, 2014 8:32 pm

mgrnoble wrote:I hope someone can help, I have an equation that I need to rearrange to get the value of y:

.43x + 17.25 + (y/(y+65) *10) = 35

I've managed to get to:

Y = 1.975Y + 128.375 - 0.043xy + 2.795x

but now I'm stumped, could anyone help me please?

You did the hard part. Now get all the y terms (including the xy term) on the left with all the other terms on the right. Factor out the y, and divide through.


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