Answer:
n=10
Step-by-step explanation:
5n-20=3n
-20=-2n
10=n
Answer:
<h2>it is 6 because it's hard to explain but all I know it's 6</h2>
This is an arithmetic series, so we know, that:
Sum = (First term + Last term) * Number of terms /2
Here we have:
First term = 33
Last term = 104
Number of terms = 104 - 33 + 1 = 72
and