True or False: 7a + 5b - 5b can be simplified.

• A. True
• B. False
• C. Both are correct
• D. None of the above

Answer: (A)

The statement is true because the expression 7a + 5b - 5b can indeed be simplified. In this expression, the terms "5b" and "-5b" are like terms, meaning they can be combined. When you combine these two terms, they effectively cancel each other out, resulting in zero. Therefore, the expression simplifies to just 7a, since 5b - 5b equals zero.

Identifying like terms and combining them is a fundamental principle in algebraic simplification, and recognizing that "-5b" cancels out "5b" is a key step in simplification. Hence, the correct answer is true, as the expression can be simplified down to just 7a.