Tap the blue circles to see an explanation.
| $$ \begin{aligned}11(x-3)-12& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}11x-33-12 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}11x-45\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{11} $ by $ \left( x-3\right) $ $$ \color{blue}{11} \cdot \left( x-3\right) = 11x-33 $$ |
| ② | Combine like terms: $$ 11x \color{blue}{-33} \color{blue}{-12} = 11x \color{blue}{-45} $$ |