V*T=630(ckop)
( v-25)(t-1)=630
V*T+V-25T-25=630
V-25T=25 V=25(T+1) T=V/25-1
V(v/25-1)=630
V²-25V-630*25=0
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V*T=630(ckop)
( v-25)(t-1)=630
V*T+V-25T-25=630
V-25T=25 V=25(T+1) T=V/25-1
V(v/25-1)=630
V²-25V-630*25=0