Evaluate sum from n=1 to 12 of 2n+5

Math
Split the summation into smaller summations that fit the summation rules.
Evaluate .
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The formula for the summation of a polynomial with degree is:
Substitute the values into the formula and make sure to multiply by the front term.
Simplify.
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Simplify the expression.
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Add and .
Multiply by .
Cancel the common factor of .
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Cancel the common factor.
Rewrite the expression.
Evaluate .
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The formula for the summation of a constant is:
Substitute the values into the formula.
Simplify.
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Remove parentheses.
Multiply by .
Add the results of the summations.
Add and .
Evaluate sum from n=1 to 12 of 2n+5

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