Try another version of this question Write the system of equations as an augmented matrix. `{(m,+,7r,-,5s,=,102),(6m,-,4r,-,7s,=,-55),(-3m,+,r,-,4s,=,-75):}` Box 1: Enter each element of the matrix as number (like 5, -3, 2.2)
`[(1,7,-5,102),(6,-4,-7,-55),(-3,1,-4,-75)]`