The graphs of {a n } and {b n } are given below. Evaluate the specified sum. <img alt='{"mathml":"<math style=\"font-family:stix;font-size:16px;\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mstyle mathsize=\"16px\"><munderover><mo>∑</mo><mrow><mi>i</mi><mo>=</mo><mn>1</mn></mrow><mn>6</mn></munderover><mfenced><mrow><mn>3</mn><msub><mi>a</mi><mi>i</mi></msub><mo>-</mo><mn>5</mn><msub><mi>b</mi><mi>i</mi></msub></mrow></mfenced></mstyle></math>","truncated":false}' class="fr-fic fr-dii" height="45" src="https://lightcat-files.s3.amazonaws.com/problem_images/28307eca74b74275-1672241549664.jpg" title="sum from i equals 1 to 6 of open parentheses 3 a subscript i minus 5 b subscript i close parentheses" width="107"/>

The graphs of {an} and {bn} are given below. Evaluate the specifi...

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