Question 2 of 11, Step 1 of 2 Consider the following algebraic expression: Correct \( -7 s-2 y, 15 \)

Did you know that negative numbers have been a part of mathematics since ancient times? The earliest recorded use comes from ancient Egyptians who used a counting system that implied negatives. However, it wasn't until the 7th century, with the help of Indian mathematicians, that they started to gain wider acceptance in mathematical operations! When working with expressions like \( -7s - 2y + 15 \), it’s important to remember to combine like terms. A common mistake is to forget that negative coefficients can flip the sign of terms when you’re adding or subtracting. Always carefully distribute any negative signs and check your final expression!