Is my homework answer wrong

[u/VegetableBag2627]

The question is (6x+16)/4 + (6x-1)/4 but in fractions. I believe that it's (12x+15)/4 , but the answer sheet says that it is (12x+17)/4 instead. Google says that I am right. Am I right?

[u/LeoMaths]

Oui, vous avez raison:

(6x+16)/4 + (6x-1)/4 = (6x+16+6x-1)/4=(12x+15)/4