First, you should multiply what's inside the parenthesis.
( 6 × 3 )x + 4 + 2x
18x + 4 + 2x
Then you add the numbers that include a variable.
18x + 4 + 2x
20x + 4
The equation can not be simplified any farther, so this is our final answer.
20x + 4
- Marlon Nunez