Question

- 8m - 4n + 9m - 5n = ?

Answer 1

- 8m - 4n + 9m - 5n =m - 9n

Answer 2

-8m-4n+9m-5n=(-8m+9m)-(4n+5n)
=m-9n

Answer 3

To simplify the expression, combine like terms:

• 8m - 4n + 9m - 5n

Combine the "m" terms: -8m + 9m = 1m (or simply m)

Combine the "n" terms: -4n - 5n = -9n

Now, the simplified expression is:

m - 9n