What is the combined constant term in the expression (- ab + 7) in the subtraction of 8b?

In the expression (-ab + 7) where 8b is subtracted, the focus is on identifying the constant term after performing the subtraction.

Initially, the constant term in the expression is 7. When subtracting 8b, you are not changing the constant term directly; rather, you are subtracting a term that involves the variable b. Since 8b is not a constant (it depends on the value of b), it does not affect the constant part of the expression when you evaluate the overall expression's numerical component.

Thus, the only constant term in the expression remains 7. The operation does not introduce any new constant term, nor does it affect the existing constant term because the other term (8b) is variable.

Therefore, the combined constant term in the resultant expression is simply carried over from the original, which is 7.

The answer that identifies the combined constant term correctly reflects this analysis.