Question
Answer
$$-bc+3b-4c+bc+3b+4c=6b$$
Explanation
| $$ \begin{aligned}-bc+3b-4c+bc+3b+4c& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}6b\end{aligned} $$ | |
| ① | Combine like terms: $$ \, \color{blue}{ -\cancel{bc}} \,+ \color{green}{3b} \, \color{orange}{ -\cancel{4c}} \,+ \, \color{blue}{ \cancel{bc}} \,+ \color{green}{3b} + \, \color{orange}{ \cancel{4c}} \, = \color{green}{6b} $$ |
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