Question

utilice la regla de crammer para resolver el siguiente sistema de ecuaciones
5x-3y=11
3x+2y=-1

Answer 1

Δs$\left[\begin{array}{ccc}5&-3\\3&2\\\end{array}\right]$(5)(2)-(-3)(3)=19
Δx$\left[\begin{array}{ccc}11&-3\\-1&2\\\end{array}\right]$(11)(2)-(-3)(1)=-19
Δy$\left[\begin{array}{ccc}5&11\\3&-1\\\end{array}\right]$(5)(1)-(11)(3)=-28

.x=$\frac{Δx}{Δs}$
y=$\frac{Δy}{Δs}$
x=$\frac{-19}{19}$=-1
y=$\frac{-28}{19}$=-3,1