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The system of linear equations ax+y=3,x+2y=3,3x+4y=7are consistent , then the value of ‘a’ is     

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a
2
b
1
c
-1
d
0

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detailed solution

Correct option is A

Solving x+2y=3,and3x+4y=7givesx=1,y=1, substituting in ax+y=3⇒a+1=3⇒a=2


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If the system of equations ax + y= 3, x + 2y = 33x + 4y = 7 is consistent, then value of a is given by 


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