Answer
$$2u+8u+2u-8u=4u$$
Explanation
| $$ \begin{aligned}2u+8u+2u-8u& \xlongequal{ }2u+ \cancel{8u}+2u -\cancel{8u} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4u\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2u} + \, \color{red}{ \cancel{8u}} \,+ \color{orange}{2u} \, \color{orange}{ -\cancel{8u}} \, = \color{orange}{4u} $$ |
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Simplify Rational Expressions