$$\frac{2}{5} = 3x-26$$

$$ \begin{aligned} \frac{2}{5} &= 3x-26&& \text{multiply ALL terms by } \color{blue}{ 5 }. \\[1 em]5\cdot\frac{2}{5} &= 5\cdot3x-5\cdot26&& \text{cancel out the denominators} \\[1 em]2 &= 15x-130&& \text{ swap the left and right side of the equation } \\[1 em]15x-130 &= 2&& \text{ move -130 to the right } \\[1 em]15x &= 2+130&& \\[1 em]15x &= 132&& \text{ divide both sides by $ 15 $ } \\[1 em]x &= \frac{132}{15}&& \\[1 em]x &= \frac{44}{5}&& \\[1 em] \end{aligned} $$

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