`(x-4)/7-(x+4)/5=(x+3)/7`then x=____

7^(x+3)=5^(x+3) then x=_____

Solve (x - 4)/(7) - (x + 4)/(5) = (x + 3)/(7)

x-1=7/4 then x=_________

6/7-5/4-1/3x+2x=0 then x=______

4x-7 = 11 then x=________

Show that if f :R {(7)/(5)} to R - {(3)/(5)} is defined by f (x) = (3x +4)/( 5x -7) and g :R - {(3/(5)} to R - {(7)/(5)} is defined by g (x) = (7x +4)/(5x -3), then fog = I _(A) and gof =I _(B), where, A = R - {(3)/(5)}, B+R -{(7)/(5)},I_(A)(x) =x, AA x in A, I_(B)|(x) =x , AA x in B are called identity functions on sets A and B, respectively.

(3x+16)/(x+7)=7/4 ,x=________

(x-4)/7=7-7 , x =_________

Let f(x) = ( x-4) (x -5) ( x- 6 ) ( x- 7 ) then

If f(x)=(3x-7)/(5x-3) then (fof)(x)=