Question

8+4a+6.2-9a simplify expression

Answer 1

Answer:

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.