`bbu = , bbv = ` Find (a) `bbu + bbv`, (b) `bbu - bbv`, and (c) `2bbu - 3bbv`.

For vectors in a coordinate form their linear combinations are also performed by coordinates.

`u= lt2,3gt, v= lt4,0gt,` therefore

(a) `u+v = lt2+4,3+0gt = lt6,3gt,`

(b) `u-v = lt2-4,3-0gt = lt-2,3gt,`

(c) `2u-3v = lt2*2-3*4,2*3-3*0gt = lt-8,6gt.`