Question

I need help eliminating determinants,

Answer 1

I have
[1/6 1/8]
[6/5 10/7]

&

[-3 5 -2]
[3 0 -3]
[3 0 1]

Answer 2

I'm having trouble solving them, I feel like I solved them correctly but then none of my answers match any of my choices.
So I must be doing these wrong

Answer 3

I meant evaluate

Answer 4

Yeah, I dont know it.

Answer 5

Is it where we swap the places of 1/6 & 10/7?

Answer 6

Then Im not familiar with it.

Answer 7

this seems complicated

Answer 8

Hah, was that sarcasm?