find the sum difference

Question

[-3 0 5 -7] +[-4 2 -1 9]

Answer 1

If you want the sum, just add the corresponding components of the 2 given vectors and get

[-3 + (-4), 0 + 2, ..., -7 + 9]

If you want the difference, just subtract the corresponding components of the 2 given vectors and get

[-3 - (-4), 0 - 2, ..., -7 - 9]