" (b) Find the value of x: `3+6+9+_____+96=x`

Find the value of x if 6:9=x:6

Find the value of x if 6 = 3(x-4)

(a) Find the value of x if 1 + 6 + 11 + ... + x = 189. (b) Find the value of x if 3 + 6 + 9 + ... + 96 = x.

Find the value of x if 5:3 :: x: 6.

Find the value of x 0.9 : 0.6 :: x : 3

Find the value of X -2(1)/(9)-6 = X

If 3% of x 9, Find the value of x.

If x = 6 , then find the value of   x^3 - 3 ( x - 6 )

If int(x^(9)+x^(6)+x^(3))(2x^(6)+3x^(3)+6)^(1//3)dx=a(2x^(9)+3x^(6)+6x^(3))^(4//3)+c then the value of 48a must be _______