Question

...............................

Answer 1

`-14`

Explanation:

All we have to do here is substitute
`a=5` and
`b=-3` into
`3b-a`. Doing so, we get:

`3b-a`

`=3*(-3)-5` (Substitute
`a=5` and
`b=-3` into
`3b-a`)

`=-9-5\\=-14`(Simplify)

Hope this helps!