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Solve the system of equations using either the substitution method or the multiplication/addition method
using his given
3x+2y=14
2x-4y=4

6x+4y=28
2x-4y=4
8x = 32
x = 4
2y = 14 - 12 = 2
y = 1
(x , y) = (4 , 1)


Question:How can check your solution by writing the system as a matrix equation and using the inverse matrix?.

Respuesta :

pkmnmushy
Your matrix would be made up of the coefficients in your equation. And it will be something like this:[3         2
 2       −4]     =  (14
                           4) The left side can be called your "A" matrix. I gave you the idea so that you may continue with it. Hope this can help

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