Obtain an equivalent system by performing the stated elementary operation on the system. Replace the fourth...

Question

Question

Obtain an equivalent system by performing the stated elementary operation on the system. Replace the fourth equation by the s

math algebra

Answer 1

Answer #1

option b is true

becuse fourth row replace by sum of itself and -2 time of 2nd row

4y+5z-4w-2(4y-z-3w)=8-2(-5)

-4y+7z+w=18

remain three rows remains same fourth convert in it

answered by: ANURANJAN SARSAM

Answer 2

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