[x+y=7],[5x+12x=7]

Solve the following system of equations by using the method of cross-multiplication: x+y=7,quad 5x+12y=7

Classify the following pairs of lines as coincident, parallel, perpendicular or intersecting : (i) 6x+14y-16=0 , 12x+28y-32=0 (ii) 3x-4y=8 , 3x+4y=11 (iii) 5x-2y=7 , 2y-5x=-7 (iv) 4x+7y=19 , 7x-4y=-2 (v) x-2y=7 , 4y-2x=13

The minimum value of p for which the lines 3x-4y=2, 3x-4y=12, 12x+5y=7 and 12x+5y=p constitute the sides of a rhombus is

The minimum value of p for which the lines 3x-4y=2, 3x-4y=12, 12x+5y=7 and 12x+5y=p constitute the sides of a rhombus is

The maximum value of p for which the lines 3x-4y=2, 3x-4y=12, 12x+5y=7 and 12x+5y=p constitute the sides of a rhombous is

Solve the following system of equations by matrix method: 3x+y=7,\ \ 5x+3y=12

Solve the following system of equations by matrix method: 3x+y=7,\ \ 5x+3y=12

Solve by cross-multiplication method 8x-3y = 12, 5x - 2y = 7

If 10y=7x-4 and 12x+18y=1 . Find the value of 4x+6y and 8y-x .

If [2x+y,4x,5x-7 4x]=[7 7y-13 y x+6] , then the value of x+y is x=3 , y=1 (b) x=2 , y=3 (c) x=2 , y=4 (d) x=3 , y=3