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