5) `3x-4y=-7;5x-2y=0` find x and y

Show that the lines 3x-4y+5=0,7x-8y+5=0 and 4x+5y=45 are concurrent.

Solve the following simultaneous equations graphically, 3x-4y=-7,5x-2y=0 .

Prove that the three lines 5x+3y-7=0, 3x-4y=10, and x+2y=0 meet in a point.

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

if (3x-2y):(5x-7y)=5:3 then, find x:y.

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

(i) x+2y=-7 and 3x-2y=-1, then find the value of x. (ii) If x+y=8 and 4y-x=2, then find the value of y. (iii) If 3x+5y=9 and 5x+3y=7, then find the value of x+y. (iv) If 3x-y=11 and x-3y=17, then find the value of x-y.

Find the equation of the line passing through the point of intersection of the lines x+2y-5=0 and 3x+7y-17=0 and is perpendicular to the line 3x+4y-10=0

Given the four lines with equations x+2y-3=0, 3x+4y-7=0, 2x+3y-4=0 and 4x+5y-6=0 , then: