in this task we will do Gause-Jordan elumination with only 1 of the 3 rules allowed: Add a number times a row to another row. it is therefore not allowed to multiply a row with numbers not equal to 0, or to switch rows. as a result of this we are not going to end up with a food giant on a reduced trapezoidal form a) if we start with the matrix

1 2 A =\f