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## Homework Statement

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?

## Homework Equations

i, j, and k are unit vectors

## 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!