Question
Answer
$$-2x-6y+4z+2x-6y+4z=-12y+8z$$
Explanation
| $$ \begin{aligned}-2x-6y+4z+2x-6y+4z& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-12y+8z\end{aligned} $$ | |
| ① | Combine like terms: $$ \, \color{blue}{ -\cancel{2x}} \, \color{green}{-6y} + \color{orange}{4z} + \, \color{blue}{ \cancel{2x}} \, \color{green}{-6y} + \color{orange}{4z} = \color{green}{-12y} + \color{orange}{8z} $$ |
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