How do you solve 4+ ( 9+ n ) = 20?

1 Answer
May 20, 2018

n = 7

Explanation:

4 + (9 + n) = 20

Because there's nothing to distribute, combine like terms:

4 + 9 = 13

13 + n = 20

Subtract 13 from both sides:

20 - 13 = 7

n = 7