Question

3x+2y=-1


5x+4y= 3

Me ayudan a resolver estas ecuaciones lineales , por favor es para hoy :') ​

Answer 1

$3x + 2y = -1\\3x + 2y +1 = 0\\f(x,y)=3x + 2y +1\\\\f(x,y)=3x + 2y + 1, f_{x} =?\\f(x,y)=3x + 2y +1, f_{y} = ?\\f_{x} =3\\f_{y} =2\\\\\frac{dy}{dx} =-\frac{f_{x} }{f_{y} } \\\frac{dy}{dx} =-\frac{3}{2}$

Solución: $\frac{dy}{dx} = -\frac{3}{2}$

2.

$5x + 4y = 3\\5x + 4y -3 = 0\\f(x,y)=5x + 4y -3\\\\f(x,y)=5x + 4y -3, f_{x} =?\\f(x,y)=5x + 4y -3, f_{y} = ?\\f_{x} =5\\f_{y} =4\\\\\frac{dy}{dx} =-\frac{f_{x} }{f_{y} } \\\frac{dy}{dx} =-\frac{5}{4}$

Solución: $\frac{dy}{dx} =-\frac{5}{4}$