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Dy/Dx = 3-x/y+4

so he cross multiplied the equation

as (3-x)Dx=(y+4)Dy , then he proceeded to integrate the function .

i dont know if this is correct or not , i mean Dy/dx is just a notation , how can you treat as if it was just a normal fraction ?

i thought he treated them as if they were differentials

then he took the integral of both sides , and he treated Dx as if it was just a notation that means integral with respect to X and so with Dy

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# Multiplying by dX

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