Question

bining like terms.

1. $6c - 4c$
2. $20 + 9p - 13$

Explanation:

Step1: Combine like terms for 6c-4c

$6c - 4c = (6-4)c = 2c$

Step2: Combine constants for 20+9p-13

$20 - 13 + 9p = 7 + 9p$

Answer:

1. $2c$
2. $9p + 7$