$$ \begin{aligned} 7y+2 &= 6y+16&& \text{move the $ \color{blue}{ 6y } $ to the left side and $ \color{blue}{ 2 }$ to the right} \\[1 em]7y-6y &= 16-2&& \text{simplify left and right hand side} \\[1 em]y &= 14&& \\[1 em]y &= 14&& \\[1 em] \end{aligned} $$