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Genesis and $3$ of her friends went to a craft fair. It cost $\$ 6$ per person to enter the fair, and they each bought a matching bracelet for $y$ dollars. Altogether, the $4$ friends spent $\$ 42$ at the craft fair.$\newline$Find a solution to the equation. You can use the calculator to help you solve.$\newline$\begin{tabular}{|l|l|l|l|}$\newline$\hline $6+y$ & $6+y$ & $6+y$ & $6+y$ \\$\newline$\hline$\newline$\end{tabular}$\newline$$$\begin{aligned} 4(6+y) & =42 \\ y & =\square \end{aligned}$$