Question
Answer
$$18ab+5a-7b+a-10b+7ab+ab-a-b=26ab+5a-18b$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}18ab+5a-7b+a-10b+7ab+ab-a-b& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}25ab+6a-17b+ab-a-b \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}26ab+5a-18b\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{18ab} + \color{red}{5a} \color{green}{-7b} + \color{red}{a} \color{green}{-10b} + \color{blue}{7ab} = \color{blue}{25ab} + \color{red}{6a} \color{green}{-17b} $$ |
| ② | Combine like terms: $$ \color{blue}{25ab} + \color{red}{6a} \color{green}{-17b} + \color{blue}{ab} \color{red}{-a} \color{green}{-b} = \color{blue}{26ab} + \color{red}{5a} \color{green}{-18b} $$ |
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