Use matrix method to solve simultaneous equations. 3x + 7y = 11 x – y + 4 = 0

      

Use matrix method to solve simultaneous equations.
3x + 7y = 11
x – y + 4 = 0

  

Answers


Kavungya
3 7 u = 11
1 -1 y 0
-1 -7 3 7 u = -1 -7 11
-1 3 1 -1 y -1 3 0
-10 0 x = -11
0 -10 y -11
x =1.1 and y =1.1

Kavungya answered the question on September 19, 2019 at 13:56


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