129k views
0 votes
PLEASE HELP, QUESTION IN THE PICTURE ​

PLEASE HELP, QUESTION IN THE PICTURE ​-example-1
User Linog
by
4.2k points

1 Answer

3 votes

Explanation:

AC is the combination of AB and BC.

so, AB + BC = AC

(2n - 1) + (4n + 5) = 10n - 12

2n - 1 + 4n + 5 = 10n - 12

6n + 4 = 10n - 12

4 = 4n - 12

16 = 4n

n = 4

User Bushed
by
4.5k points