Translate the phrase a mathematical expression then simplify the total of 7,5,-9,-7,3

To translate and simplify the mathematical expression "7, 5, -9, -7, 3," we need to add up all the numbers.

Step 1: Add the numbers together
7 + 5 + (-9) + (-7) + 3

Step 2: Combine the positive and negative numbers separately
7 + 5 + 3 = 15
(-9) + (-7) = -16

Step 3: Combine the two results
15 + (-16) = -1

Therefore, the total sum of the expression "7, 5, -9, -7, 3" is -1.