a tank initially contains salt in the pores of inert materials and 10 gal of fresh water. The salt dissolved at a rate per min of 2 times the difference between 3lb/gal and the concentration of the brine. The two gal of fresh water enters the tank per min. How much salt will be dissolved in the 1st 10 min?

Can I get the initial value of salt from the equation?

what equation should i use?

dE/dt = 2(3-C)

where C = E/(100+2t) or C = (X-E)/(100+2t)

x=initial value of salt

E=dissolve salt