How do you simplify vectors?

Question

1)AB + BC + CD

2) BC - FE - BA + DE - DC

Answer 1

AB+BC = AC
so, AB+BC+CD = AD

BC-DC = BC+CD = BD
See if you can use that idea to rearrange +/- terms so the ends line up in order

Answer 2

I need an explanation on how to do it. I just started learning this and it doesn't make sense to me.

Answer 3

you need to review addition of vectors. AB starts at A and ends at B
BC starts at B and ends at C
So, AB+BC starts at A and ends at C.
ABC form a triangle.

google will provide lots of illustrations and examples of vector addition