To solve the equation \(\frac{2x - 10}{4} = 3x\), we can start by eliminating the fraction. We can do this by multiplying both sides of the equation by 4:
\[ 2x - 10 = 12x \]
Next, we want to isolate \(x\). We'll move \(2x\) to the right side by subtracting \(2x\) from both sides:
\[ -10 = 12x - 2x \]
This simplifies to:
\[ -10 = 10x \]
Next, we divide both sides by 10:
\[ x = -1 \]
So, the solution to the equation is:
\[ \boxed{-1} \]