Try another version of this question Write the system of equations as an augmented matrix. `{(7a,+,2r,-,5x,=,97),(2a,-,5r,-,7x,=,-145),(2a,+,4r,-,6x,=,46):}` Box 1: Enter each element of the matrix as number (like 5, -3, 2.2)
`[(7,2,-5,97),(2,-5,-7,-145),(2,4,-6,46)]`