Question

Please help! Will fan and medal!
Which elementary row operation will reduce the x–element in row 2 to 0 in this matrix?

Answer 1

@Directrix

Answer 2

that link just got deleted

Answer 3

Multiply the first row by -2. Write out your result. Now combine this result with the second row. Again, please write out your result. Did this succeed in following the directions given for this problem?

Answer 4

>>that link just got deleted

I think that the answer may have just been posted there and not discussed. So, there is not evidence to show that the answer is correct in that link.