Question

now, write another equivalent expression using the fewest possible terms.
2a + 3b + 1a + 4b
= (a + a) + (b + b + b) + (a) + (b + b + b + b)
= (a + a) + (a) + (b + b + b) + (b + b + b + b)
=

Explanation:

Step1: Combine like terms for $a$

$2a + 1a = (2+1)a = 3a$

Step2: Combine like terms for $b$

$3b + 4b = (3+4)b = 7b$

Step3: Combine simplified terms

$3a + 7b$

Answer:

$3a + 7b$