3.7.17 Matrix Tutorial Exercise 2

        x + a y = 6
        x + b y = 10

Just enter the righthand side vector, then divide by the lefthand side matrix as usual.

     1:  [6, 10]    2:  [6, 10]         1:  [6 - 4 a / (b - a), 4 / (b - a) ]
         .          1:  [ [ 1, a ]          .
                          [ 1, b ] ]
                        .

     ' [6 10] <RET>     ' [1 a; 1 b] <RET>      /

This can be made more readable using d B to enable Big display mode:

               4 a     4
     1:  [6 - -----, -----]
              b - a  b - a

Type d N to return to Normal display mode afterwards.