Solve and receive brainlist​

The answer is 11x+15. To show your work add 6x+8x+-3x(tip if there is a positive and a negative next to each other then the negative wins). You should positive 11. Then u do positive 26+1+-12(if a negative is next to a positive then the negative wins). For that you should get positive 15. So ur answer should be 11x+15. Hope this helps :)

Aand b are correctly balanced reactions. they have the same number of atoms in both sides of the reaction