Step by step with this question?
First, you can divide the 2x by 3x to get 2/3.Then divide 12 and 18. 12/18 = 2/3Then you would do (2/3) + (2/3) to get 4/3.The final answer would be 4/3.Hope this helps :)
You also can simplify the final answer for 1 and 1/4 just in case