Question
Answer
$$5m-3-(2m+2m+4)=m-7$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}5m-3-(2m+2m+4)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5m-3-(4m+4) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}5m-3-4m-4 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}m-7\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2m} + \color{blue}{2m} +4 = \color{blue}{4m} +4 $$ |
| ② | Remove the parentheses by changing the sign of each term within them. $$ - \left( 4m+4 \right) = -4m-4 $$ |
| ③ | Combine like terms: $$ \color{blue}{5m} \color{red}{-3} \color{blue}{-4m} \color{red}{-4} = \color{blue}{m} \color{red}{-7} $$ |
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