T−K2V2=S
T+K2V2=S
T−K2V=S
T−KV=S
T−KV2=S
Correct answer is A
V=K√T−S
square both sides of the equation
V2=K2T−S
cross multiply
V2T−S=K2
T−S=K2V2
T=K2V2+S
T−=K2V2=S
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