Answer:
cos(c)
Step-by-step explanation:
Answer:
The answer is 14
Step-by-step explanation:
9(n+7) = 18(n+1)
9n + 63 = 18n + 18
9n = 45
n = 5
answer
n = 5
To do this, you simply need to substitute in 9 for n in the expression.
15 - n
= 15 - (9)
= 6
Hope this helps! :)