If three times a number, added to 4 is divided by the number plus 7, the result is five halves. How do you find the number?
First, let the number we are looking for be represented by
"three times a number" can then be written as
"the number plus 7" can be written as
"the result is" is
And "five halves" is
So, combining this all together gives:
Then solving this for