Question

Half of a number plus 12 is 46

Answer 1

46 = 12 + (.5x)

the number is 68

68/2 = 34 +12 = 46

Answer 2

Let the number = x
x/2 + 12 = 46
x/2 = 46 - 12 
x/2 = 34
x = 34 * 2
x = 68

So, your final answer is 68

Hope this helps!