Question

(8m – 3n) – (m + n) =

Answer 1

7m – 4n

Resolución:

(8m – 3n) – (m + n)

8m – 3n – m + n

• agrupe los términos semejantes

(8m – 3n) – (m + n)

8m – 3n – m + n

7m – 3n – n

7m – 4n