Answer
$$11x-(12x-11)=-x+11$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}11x-(12x-11)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}11x-12x+11 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-x+11\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 12x-11 \right) = -12x+11 $$ |
| ② | Combine like terms: $$ \color{blue}{11x} \color{blue}{-12x} +11 = \color{blue}{-x} +11 $$ |
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