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I have a problem.... I have to express unknown "r" from from this equation:

$$Y\times r=(-Z\times 2r\times L)+(z\times K^2\times 0.5L)$$

Can someone help me ?

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closed as not a real question by Andrés Caicedo, Amzoti, Alexander Gruber, Start wearing purple, J. M. is back. May 18 '13 at 6:09

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This matematic is too hard –  Harold May 15 '13 at 15:01
show some effort from your side –  iostream007 May 15 '13 at 15:01
do you want find out value of r in terms of Y,Z,L,K? –  iostream007 May 15 '13 at 15:02

1 Answer 1

Hint: move the term containing $r$ to the left by adding $2ZLr$ to both sides, then use the distributive law to write the left as (something)$r$, then divide both sides by (something)

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