x/8 - 1/6 = 1/12
x/8 - 1/6 = 1/12 write 1/6 as 2/12
x/8 - 2/12 = 1/12 add 2/12 to oth sides
x/8 = 3/12
x/8 = 1/4 cross-multiply
4x = 1*8
4x = 8 divide both sides by 4
x = 2