Question

simplify by combining like terms
$5a + 2b - 3a + 4$
$4ab + 4$
$8a + 2b + 4$
$2a + 2b + 4$
$8ab$

Explanation:

Step1: Group like terms

$(5a - 3a) + 2b + 4$

Step2: Combine like terms

$2a + 2b + 4$

Answer:

2a + 2b + 4 (matches the red option)