since the 7 in the second equation is negative, this means the whole fraction is negative. youre gonna do whats called adding the opposite. now to find a common denominator, well 6 and 7 both go into 42 so youre gonna change both denominators to 42. 7 × 1 is 7, so the first is now 7/42. -7 × -6 is 42, and 6 × -6 is -36. so the other one is now -36/42. once you add them together youll get -29/42. hope this helps if you have any questions lmk :)
