`{:(2x + 3y = 7),((a - 1)x +(a +2)y = 3a):}`

2x + 3y = 7 , (a+b + 1 )x + (a + 2b + 2) y = 4 (a + b ) + 1

{:(2x - 3y = 1),(kx + 5y = 7):}

{:(3x + 2y = 4),(2x - 3y = 7):}

{:(3x + 2y = 4),(2x - 3y = 7):}

Find the values of k for which the following equations have an infinite number of solutions: 2x + 3y =7 , (k-1)x+(k+2)y=3k

Find the values of a and b for which the following system of equations has infinitely many solutions: 2x+3y=7,quad (a-1)x+(a+2)y=3a

For what value of k does the system of linear equations 2x+3y=7 and (k-1)x + (k+2)y =3k have an infinite number of solutions

Simplify: (2x + 5y)(3x + 4y) - (7x + 3y)(2x + y)

6x + 5y = 7x + 3y + 1 = 2 ( x + 6y - 1 )