Question

a pair of linear equations which has infinitely many solutions is
2x-2y+20=0 ,x-y+10=0
2x-3y+6, 2x+3y+6
3x-4y-6 , 3x-4y+6
5x-10y+20 ,5x-20y+30​

Answer 1

Answer:

the correct answer is a) 2x-2y+20=0 , x-y+10=0

Step-by-step explanation:

for an equation to have infinitely many solutions :-

the ratio of coefficients of 'x' and 'y' and the constant should be equal