I know this sounds a little stupid and it may sound like I am just trying to get answers but really clueless. The only thing I could really think of is factoring out (d-3)^3 and then finding a lowest common denominator so I can multiply by the bottom and get rid of the fraction and then factor out the x's and solve for them... But I keep getting lost in all my work... Would appreciate any help. Thanks!

Solve for x.