If `(x+3)/4 =5` and `(y-2)/3 =6` then find `x` and `y`

If (2x + 3,y-1) =(3,5) , then find x and y.

If [(x+3, 4),(y,-4x+y)]=[(5 ,4),( 3 ,9)] , find x and y

Solve : 4x + (6)/(y ) = 15 and 3x - (4)/(y) = 7 . Hence, find 'a' if y = ax -2.

If (3x -4y) : (2x -3y) = (5x -6y) : (4x -5y) , find : x : y .

If [(2x+y,3y),(0, 4)]=[(6, 0),( 6, 4)] , then find x .

If {:[(x-2y,2x-y),(3,4)]:}={:[(3,4),(3,4)]:} then find x and y.

Solve: 2/x+2/(3y)=1/6 and 3/x+2/y=0 and hence find ' a ' for which y=a x-4 .

Find 2x(x-3y)+2y^2 when x=-6 and y=3

If two lines of regression are 4x + 2y - 3=0 and 3x + 6y + 5 = 0 , then find the correlation coefficient.

If 2x+3y=13 and x y=6 , find the value of 8x^3+27\ y^3