Given the function f(x)=2x^(5/2) :

Calculate exactly the value(s) of x when f(x)=6. If there is more than one such value, enter all possible values as a comma separated list of exact values. x=

If g(x)= 1/(t+7)-9

Solve g(t)=0. If there is more than one solution, enter all solutions as a comma separated list ofexactvalues.

Whatever it is I'm doing is giving me the wrong answer

So how to I go about this problem?

My working:

6= 2x^(5/2) is what is given for the first part, now how to i ISOLATE the x on the right side

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0= 1/(t+7) -9

I would add 9

9=1/(t+7) then would I multiply both sides by (t+7)