Answer:
The expression 13x - 7 is equivalent to 13x + (-7). This is because the subtraction of a negative number is the same as the addition of a positive number.
For example, if we have the expression 13x - 7, we can rewrite it as 13x + (-7) as follows:
13x - 7 = 13x + (-7)
Therefore, the expression that is equivalent to 13x - 7 is 13x + (-7).