Jerome added two numbers. The sum was 83. One of the numbers was 45. What was the other number?

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Answer 1 · 2016-12-11T23:51:48

The other number was 38.

Let's call the number we are looking for #n#:

The sum of 45 and #n# must be 83 so we can write:

#n + 45 = 83#

Now we can solve for #n# while keeping the equation balanced:

#n + 45 - 45 = 83 - 45#

#n + 0 = 38#

#n = 38#