Solve 7+(-3): Adding Positive and Negative Numbers on a Number Line

Let's locate the number 7 on the number line.

Since the number 7 is greater than 0, we will move seven steps to the right from zero, where each step represents one whole number as follows:

Now let's look at the operation in the exercise.

Since the operation is $+(-3)$

And the number minus 3 is less than 0, we will move three steps to the left from the number 7, where each step represents one whole number as follows:

We can see that the number we reached is 4.