Question

1. what is the simplified form of the expression ( 7r - 8r + 13 - 2r + 5 )?

Explanation:

Step1: Combine like terms with $r$

$7r - 8r - 2r = (7 - 8 - 2)r = -3r$

Step2: Combine constant terms

$13 + 5 = 18$

Step3: Combine simplified terms

$-3r + 18$

Answer:

$-3r + 18$