`7x+3y=42 21 x+9y=42`

Find the solutions of form x = a, y = 0 and x= 0, y= b for the following pairs of equations. Do they have any common such solution ? 7x+3y=42 and 2x+5y=12 .

Prove that the following lines are concurrent. Also, find the point of concurrence : 5x -3y = 1, 2x+ 3y = 23, 42x + 21y = 257 .

Prove that the following lines are concurrent. (i)5x-3y=1 , 2x+3y=23 , 42x+21y=257 (ii) 2x+3y-4=0 , x-5y+7=0 , 6x-17y+24=0

Solve the equations 4x+5y = 42 and x+ 8y = 51 for x and y.

Solve the equations 4x + 5y = 42 and x + 8y = 51 for x and y.

Find the greatest common factor (GCF/HCF) of the following polynomials: 7x , 21 x^2a n d\ 14 x y^2 (ii) 42 x^2y z\ a n d\ 63 x^3y^2z^3

6 ^ (x) + 6 ^ (y) = 42, x + y = 3

What is the y- intercept of the line by the equation 7x - 3y = 21 ?

Simplify the following: 7x^3+8y^3-(4x+3y)(16 x^2-12 x y+9y^2)

Equation of the circle cutting orthogonal these circles x^2+y^2-2x+3y-7=0 , x^2 +y^2+5x-5y+9=0 and x^2+y^2+7x-9y+29=0 is: