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