Hi,

Solve the system of equations by using the inverse of the coefficient matrix.

 x+5y = 25 

5x+5y = 45

                                  

 = -20







and...





Checking our answer using the Elimination Method:

 x+5y = 25 

5x+5y = 45   |Subtracting 1st EQ from the 2nd

  4x = 20  

   x = 5  and y = 4  as 

(x,y) Ordered pair (5,4) the solution for this system of equations

  

  

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