Question

Find the value of a for which the pair of equations ax - y = 2 and 6x - 2y = 4 has infinitely many solutions:
A) -12
B) 3
C) -3
D) None of these

Answer 1

the ans is the (b) one

Step-by-step explanation:

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Answer 2

Answer:

ax-y=2

a1=a b1= -1 c1= 2

6x-2y=4

a2=6 b2= -2 c2=4

a/6= -1/ -2

2a=6

a=3