The given expression is : -1 + x/4 = 12
We need to find the value of x
[tex]\begin{gathered} -1+\frac{x}{4}=12 \\ \frac{-1}{1}+\frac{x}{4}=12 \\ \text{Taking LCM of 4 \& 1} \\ \text{LCM of 4 \& 1 =4} \\ \frac{-4+x}{4}=12 \\ \frac{-4+x}{4}=\frac{12}{1} \\ \text{Apply cross multiplication method} \\ 1(-4+x)=4\times12 \\ -4+x=48 \\ \text{Add 4 on both side} \\ -4+x+4=48+4 \\ x=52 \end{gathered}[/tex]Thus, the value of x =52
Answer : x = 52