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3 years ago

6

2x+y=5 solve for y (please show work)

1 answer:

nasty-shy [4]3 years ago

3 0

Answer:

subtract y from both sides

y=-2x+5

Step-by-step explanation:

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$\sum_{n=3}^{20}(n(n+1))=\sum _{n=3}^{20} n^2+ \sum _{n=3}^{20} n$

Step-by-step explanation:

Given expression : $\sum_{n=3}^{20}(n(n+1))$

Solving further :

$\Rightarrow \sum_{n=3}^{20}(n^2+n)$

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So, The given expression is equivalent to Option A

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