Solve what? You show 4 different problems. Which do you want help with? Have you even tried any of these? If so what have you done? Or do you just want someone to do your homework for you?
The first asks you to solve the two equations 4 log(x)+ 8log(y)= 5 and 6 log(x)- 6 log(y)= -3 for x and y. Suppose the equations were 4X+ 8y= 5 and 6X- 6Y= -3. Could you solve those?
You posted these problems in the Calculus forum so I assume that means that you are studying Calculus. However none of the problems are related to Calculus so I am assuming that this is some kind of Algebra review. You say that you can not do any of these and they are a pre-requisite for Calculus? All I can say is this does not look very good.
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