Question

1. n - 10 + 9n - 3

Explanation:

Step1: Combine like terms for n

We have \( n \) and \( 9n \). Combining them gives \( n + 9n = 10n \).

Step2: Combine constant terms

We have \( -10 \) and \( -3 \). Combining them gives \( -10 - 3 = -13 \).

Step3: Combine the results

Putting the combined like terms together, we get \( 10n - 13 \).

Answer:

\( 10n - 13 \)