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Distributive law ? difficulty with algebra!

Hello,

Can someone help me understand how to get from step#1 to step#2 . My algebra is rusty and its been a long time... I appreciate all the help I can get!

Step#1

vo = (v + d/2)(r/b + r) (1+f/a)- (v - d/2)(f/a)

Step#2

vo = v [(r/b + r) (1+ f/a) -(f/a)] + d(1/2) [(r/b + r) (1+ f/a) + (f/a)]

Thank you!

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Re: Distributive law ? difficulty with algebra!

Re: Distributive law ? difficulty with algebra!

ha!!! Thank you very much ibdutt!!!

This was very kind of you!

sincere regards

s