$$ \begin{aligned} 11x\cdot4-\frac{6+3+13}{2} &= 0&& \text{multiply ALL terms by } \color{blue}{ 2 }. \\[1 em]211x\cdot4-2 \cdot \frac{6+3+13}{2} &= 2\cdot0&& \text{cancel out the denominators} \\[1 em]88x-22 &= 0&& \text{ move the constants to the right } \\[1 em]88x &= 22&& \text{ divide both sides by $ 88 $ } \\[1 em]x &= \frac{22}{88}&& \\[1 em]x &= \frac{1}{4}&& \\[1 em] \end{aligned} $$

This page was created using