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Write the system of equations as an augmented matrix.

 `{(m,+,7r,-,5s,=,102),(6m,-,4r,-,7s,=,-55),(-3m,+,r,-,4s,=,-75):}` 

 
 

X
MathQuill
   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
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