Question

find the value of k if the equation has infinitely many solutions
x - y = 2
3x + 6y = -5 ​

Answer 1

Answer:

y= -11/9

x =7

Step-by-step explanation:

given that,

x-y= 2. eq (1)

3x+6y=-5. eq (2)

multiple the eq 1 by 3 we get

3x -3y = 6

on subtracting eq 2 from eq 1 we get3

( 3x-3y = 6 ) - (3x +6y =-5)

-9y= 11

y = -11/9

on putting the value of y in eq 1 we get

x - (-11/9) =2

x+11/9 =2

x= 2 -11/9

x =7