In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
[tex]2\text{ + }\frac{x+3}{4}=3y[/tex]x = ?
Step 02:
[tex]\begin{gathered} \frac{x+3}{4}=3y\text{ -2} \\ x+3=(3y-2)\cdot4\text{ } \\ x\text{ = 12y-8-3} \\ x=\text{ 12 y - 11} \end{gathered}[/tex]