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# Help on Differential equations question watch

1. I've done the first part, and got the result x=Ne^(-at)
I'm stuck on trying to set up the expression to be evaluated in the second part. The best I can come up with is dy/dt = ax - by - (gamma)y, which I know is wrong.
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2. (Original post by an_atheist)
I've done the first part, and got the result x=Ne^(-at)
I'm stuck on trying to set up the expression to be evaluated in the second part. The best I can come up with is dy/dt = ax - by - (gamma)y, which I know is wrong.
Hi, I've moved your thread to the maths help forum as you'll hopefully get more help here.

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