my problem has been resolved this far but i cant transpose or what ever you call it

rearrange the formula

ive been getting help and have ended up with this

24.5 - x.cos(30). = u(42.44 + x.sin(30))

where u is cofficient of friction 1/7 or 0.143

also should the brackets be around the 30??

30 is the angle X is at

so 5g is resolved but cant work out X

49cos30= 42.44

49sin30= 24.5

but i cannot work it out. sure you all know what its like after a day of exams.

and a break down of how to work it would be great