To solve the first equation, we need to isolate x by subtracting 7/12 from both sides:

x + 7/12 = 3/4
x = 3/4 - 7/12
x = 9/12 - 7/12
x = 2/12
x = 1/6

Now, to solve the second equation, we need to isolate x by subtracting 1/6 from both sides:

x + 1/6 = 1/9
x = 1/9 - 1/6
x = 2/18 - 3/18
x = -1/18

Therefore, the solutions to the equations are x = 1/6 and x = -1/18.