simplify by combining like terms: 5a + 2b - 3a + 4

simplify by combining like terms: 5a + 2b - 3a + 4
Answer
Explanation:
Step1: Identify like - terms
The like - terms are (5a) and (-3a).
Step2: Combine like - terms
(5a-3a=(5 - 3)a=2a). The terms (2b) and (4) have no like - terms to combine with, so they remain as they are.
Answer:
(2a + 2b+4)