Log 2 7 log 7 4. 5 log7 98/5 log7 2. log7 * log 7 10. 2log74/log7 4 10. log7 169/log7 13 +5.

Log 2 7 log 7 4. 5 log7 98/5 log7 2. log7 * log 7 10. 2log74/log7 4 10. log7 169/log7 13 +5.
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