Question

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

Explanation:

Step1: Combine like terms (a terms)

$1a + 3a = (1+3)a = 4a$

Step2: Combine like terms (b terms)

$4b - 3b = (4-3)b = 1b = b$

Step3: Combine simplified terms

$4a + b$

Answer:

$4a + b$