The best way to solve it is to work backwards, like this:
X / 8 + 6 = 74
X / 8 = 74 - 6
X / 8 = 68
X = 68x8
X = 544
No, 74 divided by 12 equals 6 with a remainder of 2 or 6.167
(6 plus 6) divided by (6 plus 6) times 6 equals 6
15 plus -3 equals 12 12 divided by -6 equals -2
0.0811
6 / 6 = 0 + 1
74
12.3333
Yes, 444 divided by 6 equals 74
No, 74 divided by 12 equals 6 with a remainder of 2 or 6.167
(6 plus 6) divided by (6 plus 6) times 6 equals 6
15 plus -3 equals 12 12 divided by -6 equals -2
74
1.3 irrational
0.0811
6 / 6 = 0 + 1
8
11