Pengguna:S Rifqi/Bak pasir 1: Perbedaan antara revisi

&= \frac{\color{red}{\frac{x - 1}{x - 2}}}{\color{red}{\frac{x - 1}{x - 2}}\color{black}{ + 1}} \\

&= \frac{x - 1}{x - 1 + x - 2} \\

\end{aligned}

</math>