Sumation of n=1 - 20 (5n+7)
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Answer:
Your question in equation form is
∑ₙ₌₁→₂₀ (5n+7)
This is equal to 12+17+22+27+32+37+42+47+52+57+62+67+72+77+82+87+92+97+102+107
=
1190
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