3x+4y+5;quad 2x+6y+8

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

Add: 5x - 8y + 2z, 3z - 4y - 2x, 6y - z - x and 3x - 2z - 3y

Let 2x + 3y = 4 and 5x + 6y = 7 . What is the value of 8x + 9y ?

Distance between two planes : 2x + 3y + 4z = 5 and 4x + 6y + 8z = 12 is :

Perpendicular distance between 3x+4y-5=0 and 6x + 8y - 15=0 is …....

If x : y = 3 : 4 find (3x + 4y) : (5x + 6y) .

The line 3x + 2y = 6 will divide the quadrilateral formed y the lines x + y = 5, y – 2x = 8, 3y + 2x = 0 & 4y – x = 0 in

If 3x+ 4y-11 = 18 and 8x- 6y +12 = 6, then what is the value of 5x- 3y - 9?

If r_(1), r_(2) " and " r_(3) are the radii of the circle x^(2) + y^(2) - 4x + 6y = 5 , x^(2) + y^(2) + 6x - 4y = 3 " and " x^(2) + y^(2) - 2x + 4y = 8

Subtract the sum of 5x - 4y + 6z and -8x + y - 2z from the sum of 12x - y + 3z and -3x + 5y - 8z