`x+7y=10`
`3x-2y=7`

Find the point of intersection of the line 5x+7y=3 and 2x-3y=7

IF (5x-7y+10)/1=(3x+2y+1)/8=(11x+4y-10)/9 then what is x+y equal to

Solve the following system of equations by matrix method : 5x+7y+2=0 4x+6y+3=0 5x+2y=3 3x+2y=5 3x+4y-5=0 x-y+3=0 3x+y=19 3x-y=23 3x+7y=4 x+2y=-1 3x+y=7 5x+3y=12

If 3x-7y=10 and xy=-1, find the value of 9x^(2)+49y^(2)

3x+2y=14; x+4y=7

If x + y =7 and 3x-2y=11,then

Solve the following simultaneous equations : (i) x+y=7, x-y=5 (ii) x+y=10, x-y=16. (iii) 3x+y=14, x-y=2.

Find the equations of the straight lines passing through the point (-3, 2) and making an angle of 45^(@ with the straight line 3x-y+4=0 (A) x-2y+7=0,2x+y+4= (B) x+2y+7=0,2x-y+4=0(c) x-2y-7=0,2x+y+4=0 (D) x-2y-7=0,2x+y-4=0

3x+2y=5 2x-3y=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