00:01
So in this next question, we're going to be evaluating another expression.
00:05
This time our expression is m plus n.
00:09
And in our case here, m is equal to negative 15 and n is equal to 7.
00:16
So if we want to go ahead and find the value of this expression here, well, first we're going to have to substitute.
00:23
So we'll go ahead and we'll just substitute both of these numbers in one at a time.
00:27
So m is equal to negative 15.
00:30
So if we were to write m plus n, we'd get negative 15 plus n.
00:35
And we can substitute n in right now.
00:38
So n is equal to 7.
00:39
So we can just substitute that integer in for n.
00:43
So our expression here, m plus n, is really just equal to negative 15 plus 7.
00:48
Now we can go ahead and carry out that operation.
00:52
Now that we know what these integers are, let's go ahead...