If   x + y = 6 ; if y = 3 , then find x

If 3x - 2y = 12 and 6x + y = 9 , then find the values of x and y

If 2x +3y = 30 and (x+y)/y = 11/8 , then find the value of 5y + 6x

If 6^(x-y)=36 and 3^(x+y)=729 , then find x^(2)-y^(2) .

if (x-y)^3=216 and (x-y)^5=32 , then find x^3-y^3 . The following steps are involved in solving the above problem. Arrange them in sequential order. (A) Therefore, x-y=6 and x+y=2 . (B) Solving x-y=6 and x+y=2rArrx=4, y=-2 . (C) x^3-y^3=64-(-2)^3=64+8=72 (D) (x-y)^3=216rArr(x-y)^3=6^3rArr x-y=6 and (x+y)^5=32rArr (x+y)^5=2^5rArr x+y=2 .

If   x/y = 1/3 , then ( ( x^2 + y^2 )/( x^2 - y^2 ) ) is equal to

If x : y = 3 : 4 and y : z = 6 : 11," then find " x : y : z .

If x = 6 and y = 3 then the value of [x + y]^(x//y) is :