Question
Answer
$$7x-3-(2x-9)=5x+6$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}7x-3-(2x-9)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}7x-3-2x+9 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}5x+6\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 2x-9 \right) = -2x+9 $$ |
| ② | Combine like terms: $$ \color{blue}{7x} \color{red}{-3} \color{blue}{-2x} + \color{red}{9} = \color{blue}{5x} + \color{red}{6} $$ |
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