Question

1. simplify each expression.

a. $5x + 10 - x + 7$
b. $18a + 6m + 9 - 13a - 3m + 11$

Explanation:

Step1: Group like terms (part a)

$(5x - x) + (10 + 7)$

Step2: Combine like terms (part a)

$4x + 17$

Step3: Group like terms (part b)

$(18a - 13a) + (6m - 3m) + (9 + 11)$

Step4: Combine like terms (part b)

$5a + 3m + 20$

Answer:

a. $4x + 17$
b. $5a + 3m + 20$