Explanation:<u></u><u><em>First you had to remove parenthesis. Then it gave us 3x+6y-4+2 x-6. Next you can also expand 2(x-6): 2x-12 and it gave us 3x+6y-4+2x-12. Finally, you can simplify 3x+6y-4+2x-12: or 5x+6y-16. And the answer is =5x+6y-16 is the right answer. Hope this helps! And thank you for posting your question at here on Brainly. And have a great day! -Charlie</em></u>