Question
Simplify: $2 \mathrm{a}+(6-\overline{\mathrm{a}-\mathrm{b}})$
✓
Answer
$\begin{aligned} & 2 a+(6-\overline{a-b}) \\ & =2 a+(b-a+b) \\ & =2 a+b-a+b \\ & =a+2 b\end{aligned}$
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