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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?.

Verified Answer :

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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