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Solution : Given differential equation(dy)/(dt)=0.7(y-150)-(1)", if "y=50,f=0Now the separable variable to differential equation. then(dy)/((y-150))=0.7 dtNow the integrating both site we have{:[=>int(dy)/((y-150))=0.7 int dt+c],[=>log |y-150|=0.7 t+c-(3)]:}If apply ... See the full answer