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If 
xy+2x=-2+2y then find 
(dy)/(dx) in terms of 
x and 
y.
Answer: 
(dy)/(dx)=

If xy+2x=2+2y x y+2 x=-2+2 y then find dydx \frac{d y}{d x} in terms of x x and y y .\newlineAnswer: dydx= \frac{d y}{d x}=

Full solution

Q. If xy+2x=2+2y x y+2 x=-2+2 y then find dydx \frac{d y}{d x} in terms of x x and y y .\newlineAnswer: dydx= \frac{d y}{d x}=
  1. Given equation differentiation: We are given the equation xy+2x=2+2yxy + 2x = -2 + 2y. To find dydx\frac{dy}{dx}, we need to differentiate both sides of the equation with respect to xx, treating yy as a function of xx (implicit differentiation).
  2. Left side differentiation: Differentiate the left side of the equation with respect to xx. The term xyxy is a product of xx and yy, so we use the product rule: d(uv)dx=udvdx+vdudx\frac{d(uv)}{dx} = u\frac{dv}{dx} + v\frac{du}{dx}. Here, u=xu = x and v=yv = y, so we get xdydx+y(1)x\frac{dy}{dx} + y(1). The term 2x2x is straightforward: the derivative of 2x2x with respect to xx is xyxy11.
  3. Right side differentiation: Differentiate the right side of the equation with respect to xx. The term 2-2 is a constant, so its derivative is 00. The term 2y2y is a function of xx, so we get 2dydx2\frac{dy}{dx}.
  4. Write down differentiated equation: Now we write down the differentiated equation: xdydx+y+2=2dydxx\frac{dy}{dx} + y + 2 = 2\frac{dy}{dx}.
  5. Solve for dydx\frac{dy}{dx}: We need to solve for dydx\frac{dy}{dx}. To do this, we'll collect all the terms containing dydx\frac{dy}{dx} on one side and the other terms on the opposite side. Subtract xdydxx\frac{dy}{dx} from both sides to get: 2dydxxdydx=y+22\frac{dy}{dx} - x\frac{dy}{dx} = y + 2.
  6. Factor out dydx\frac{dy}{dx}: Factor out (dydx)\left(\frac{dy}{dx}\right) from the left side: (dydx)(2x)=y+2\left(\frac{dy}{dx}\right)(2 - x) = y + 2.
  7. Divide to solve for dydx\frac{dy}{dx}: Divide both sides by (2x)(2 - x) to solve for dydx\frac{dy}{dx}: dydx=y+22x\frac{dy}{dx} = \frac{y + 2}{2 - x}.

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