To get rid of the x term on the right side of the equation (which is \(2x\)), you can subtract \(2x\) from each side.
So the equation:
\[ 20 + 4x = 30 + 2x \]
becomes:
\[ 20 + 4x - 2x = 30 \]
This simplifies to:
\[ 20 + 2x = 30 \]
Now, you can solve for \(x\). What would you like to do next?