So just for future reference, know that "solve by using inverse operations" is basically just undoing the problem.
a) 7x - 15 = 1 First thing to do is add 15 to both sides (inverse of subtracting 15). 7x = 16 Now divide both sides by 7 (inverse of multiplying by 7). x = 16/7
b) (x+2)/4 = -2 Multiply both sides by 4. x + 2 = -8 Now subtract 2 from both sides. x = -10
