Question

Let u = <7, -3>, v = <-9, 5>. Find 4u - 3v.

Answer 1

4u=<28, -12>
-3v = <27, -15>

add them up
<55, -3>

Answer 2

So that's the answer

Answer 3

that's not quite that answer, because the addition was done incorrectly...

4u = <28,-12>
-3v = <27,-15>
4u + (-3v) = <28+27,-12+-15> = <55,-27>

Answer 4

so, the answer is <55,-27>? . if so, thanks

Answer 5

Yes, <55,-27> is the answer.