Question

add. (-7m + 2) + (9m - 1)

Explanation:

Step1: Group like terms

$(-7m + 9m) + (2 - 1)$

Step2: Combine like terms

$(-7 + 9)m + (2 - 1)$

Step3: Calculate coefficients and constants

$2m + 1$

Answer:

$2m + 1$