Using the following initial simplex tableau, answer the following:

 x y z u v w D 7 11 5 1 0 0 0 120 -4 -15 -2 0 1 0 0 -450 -1 -1 -1 0 0 1 0 -310 -66 -99 -47 0 0 0 1 0 

(a) If you choose a pivot element fromcolumn 1, what is the first row operation that you must perform? __(1/7)R1__

(b) List the remaining row operations that must be performedafter the first row operation has been performedto carry out the first step.

_____R2+4R1______

_____R3+1R1_____

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