Question

PLEASE HELP

Add the two expressions. 3.8b−7 and −2.9b+9 Enter your answer, in simplified form, in the box.

Answer 1

0.9b+2 is definitely the right answer i just took the test.

Answer 2

The required expression is 0.9b + 2.

Explanation:

The given expressions are 3.8b−7 and −2.9b+9.

We have to find the simplified form of their addition.

Add both the expressions.

`(3.8b-7)+(-2.9b+9)`

`3.8b-7-2.9b+9`

Combine like terms.

`(3.8b-2.9b)+(9-7)`

`0.9b+2`

Therefore the required expression is 0.9b + 2.