If Dy/Dx = -5sin(5x-3y)+(Dy/Dx(5-3))
Then how can: (1-3*sin(5x-3y))Dy/Dx = -5sin(5x-3y)
And so the derivative is -5sin(5x-3y) / (1-3sin(5x-3y))
How can the derivative dissapear , it's factored but still doesn't make sense to me.
From khanacademy .go check this video because it's confusing on the forum.