$$ \begin{aligned} 3+3\cdot5 &= 6x+6&& \text{simplify left side} \\[1 em]3+15 &= 6x+6&& \\[1 em]18 &= 6x+6&& \text{ swap the left and right side of the equation } \\[1 em]6x+6 &= 18&& \text{ move 6 to the right } \\[1 em]6x &= 18-6&& \\[1 em]6x &= 12&& \text{ divide both sides by $ 6 $ } \\[1 em]x &= \frac{12}{6}&& \\[1 em]x &= 2&& \\[1 em] \end{aligned} $$

This page was created using