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