If 5 # 9 @ \( =52 \) and \( 3 @ 9 \# 2=-89 \), then what is the value of \( 7 \# 6 @ 9 \) ?
If 5 # 9 @ \( =52 \) and \( 3 @ 9 \# 2=-89 \), then what is the value of \( 7 \# 6 @ 9 \) ?
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