How do I solve: -(19-3s)-(8s+1)=35
2 answers:
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Answer:
Option D.
Step-by-step explanation:
we know that
To evaluate the sum , use the formula
where
a1 is the first term
an is the last term
n is the number of terms
In this problem
For n=1 ------> a1=2(1)=2
For n=16 ------> an=2(16)=32
n=16 terms
substitute in the formula