find x and y :
`2x+y-5=0 `
`3x+2y-8=0`

find x and y : 2x+3y-8=0, 3x+y-5=0

Find the value of x and y from 7x-15y-2=0 x+2y-3=0

Find the value of x and y from 7x-15y-2=0 x+2y-3=0

Regression equation of y on x and y be x + 2y - 5 = 0 and 2x + 3y - 8 = 0 respectively and the variance of x is 12. find the variance of y.

if the system of following equations in x and y 2x+3y+4=0,3x+5y+6=0 2x^(2)+6xy+5y^(2)+8x+12y+1=t Consists of a solution, then find the value of |t|

The two lines of regression are x+ 2y- 5= 0 and 2x + 3y - 8=0 and the variance of x is 12. Find the variance of y and the coefficient of correlation.

Find the value of K if the lines x+y-5=0 and 2x+ky-8=0 are conjugate with respect to the circle x^(2)+y^(2)-2x-2y-1=0

Find value of x and y: (5x-4y+8=0),(7x+6y-9=0)

Find value of x and y: (5x-4y+8=0),(7x+6y-9=0)

The two lines of of regressions are x+2y-5=0 and 2x+3y-8=0 and the variance of x is 12. Find the variance of y and the coefficient of correlation.