Given A=(2,-7,6,1) and B=(-9,5,1-1) If X - A = B, what is X?
(-7,-2,7,0)
(-11,12,-5,-2)
(-7,-12,5,0)
(11,-12,5,2)

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.