Bob thinks of a number...
Bob thinks of a number. He doubles it and adds 6. He then divides it by 2. The answer is 8. What was his original number?
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Here, we can create an equation:
ReplyDelete(2x + 6) / 2 = 8
Now we can solve:
x + 3 = 8
x = 8 - 3
x = 5
We now have our answer. Five.