" (1) "3x+y=10quad x'-y=2quad 4x7=28

3x + 4y = 10, 2x-2y = 2

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

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

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

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

3x-y=7; 2x+4y=0

3x-4y=-7,5x-2y=0

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

If x and y are integers, what is the value of x^2 + 2xy + y^2 ? (1) x + y = 7 (2) 2x = (28 - 4y)/(2)