Question

Simplify the following expression.-5a - 10(-a - 10) + 1 - 2a

Answer 1

`\begin{gathered} -5a-10\left(-a-10\right)+1-2a \\ \end{gathered}`

Step 1

break the parenthesis

`\begin{gathered} -5a-10(-a-10)+1-2a \\ -5a+10a+100+1-2a \\ \end{gathered}`

Add similar terms

`\begin{gathered} -5a+10a+100+1-2a \\ 3a+101 \end{gathered}`

so, the answer is 3a+101