Matrixes n row operations 15 points and brianliest

160

step-by-step explanation:

idk

i hope i

c

step-by-step explanation:

i think because what else can be a sample of every member

i hope this is what you were looking for.

see attached graph

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !