$$ \begin{aligned} 4y+2y-76 &= 3y+11&& \text{simplify left side} \\[1 em]6y-76 &= 3y+11&& \text{move the $ \color{blue}{ 3y } $ to the left side and $ \color{blue}{ -76 }$ to the right} \\[1 em]6y-3y &= 11+76&& \text{simplify left and right hand side} \\[1 em]3y &= 87&& \text{ divide both sides by $ 3 $ } \\[1 em]y &= \frac{87}{3}&& \\[1 em]y &= 29&& \\[1 em] \end{aligned} $$

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