Hello!
It is time, once again, for Ensign Steve calm the fuck down, quit pulling out her hair and threatening to quit school, and appeal to the geniuses at
for some goddamn homework help.
I never took linear algebra, and I have spent the last several years just winging it and sort of muddling through. As such, I know enough to get me in trouble, but not enough to get myself out of it.
If you are so inclined, take a looksee at the slides below and riddle me this:
Why does multiplying rows 3 and 5 by a scalar not affect the right-hand-side values R3 and R5, but adding those lines to row 4 does affect the value at R4?