Evaluate (complex solution)
\frac{T_{S}}{T_{P}}=7\text{ and }S=\frac{T_{S}}{T_{P}}
Solve for T_S
T_{S}=7T_{P}
T_{P}\neq 0\text{ and }S=7
Solve for T_P
T_{P}=\frac{T_{S}}{7}
S=7\text{ and }T_{S}\neq 0
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