1. The problem statement, all variables and given/known data Three vectors are related as by the equations: A+B = 2C and B-2A = -C. If C= 1i + 2j +3k then what is vector A equal to? 2. Relevant equations i, j, and k are unit vectors 3. The attempt at a solution The solution in my answer key says that vector A = vector C but I don't understand how they arrived at that. Any clarification would be appreciated, thanks!