Question

8+4a+6.2-9a simplify expression

Answer 1

Well,
`8+4a+6.2-9a` has like terms. The simplified expression would just be these like terms combined.

First, let's combine
`8` and
`6.2`

`8+6.2=14.2`

`4a-9a+14.2`

Now, combine the other two monomials.

`4a-9a=-5a`

`-5a+14.2` would be your answer.

Remember: Some terms can't be combined. For example,
`4a` and
`8` cannot be added together, due to the
`a` in
`4a`. These are not like terms. But
`4a` and
`-9a` are, and can indeed be combined.

Answer 2

8 + 6.2 + 4a - 9a

(8 + 6.2) + (4 - 9)a

14.2 - 5a is your answer.