Question

Simplify the expression below(6.2n - 8.3) + (-9.1 + 1.4n)

Answer 1

`(6.2n-8.3)+(-9.1+1.4n)`

To simplify this expression:

1. Remove the parenthesis: To remove parenthesis you need to know that the symbol outside parenthesis affects all the terms inside parenthesis.

`\begin{gathered} +(-)=- \\ -(+)=- \\ -(-)=+ \\ +(+)=+ \end{gathered}`

The given expression after remove the parenthesis is:

`6.2n-8.3-9.1+1.4n`

2. Add or substract similar terms: similar terms have the same variable in this case n, or don't have any variable:

`7.6n-17.4`Then, the given expression simplified is 7.6n - 17.4