Question
Add $ \, \color{blue}{ y-7 } \, $ and $ \, \color{orangered}{ 3y-18 }$.
Answer
$$ \left( \color{blue}{y-7} \right) + \left( \color{orangered}{3y-18} \right) = 4y-25 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrr} & y & -7 \\ \color{blue}{ + } & 3y & -18 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrr} & y & -7 \\ \color{blue}{ + } & 3y & -18 \\ \hline & 4y & -25 \end{array} $$This page was created using
Polynomial Operations Calculator