`x/2= x/3 + 1 ` ,Find the value of x .

If (x + 1, y - 2) = (3, -1) , find the values of x and y.

If x - (1)/(x) = y , x ne 0 , find the value of (x- (1)/ (x) - 2y ) ^(3)

If x = 2 - sqrt 3 , find the value of (x-1/x)^3

If x^2+1/(x^2)=83 . Find the value of x^3-1/(x^3)

Ilf f(x)={x^3, x 2 , then find the value of f(-1)+f(1)+f(3) . Also find the value (s) of x for which f(x)=2.

If x = 2, y = 3 and z = -1, find the values of : x-:y

Given 3x^(2) +x=1 , find the value of 6x^(3) - x^(2) -3x + 2010 .

If x^2+1/(x^2)=51 , find the value of x^3-1/(x^3)

If 3^(x +1) = 9^(x - 3) , find the value of 2^(1 + x) .