Correct option is A

By solving option (a),
3(2x+3)=5(x+1)
or, 6x+9=5x+5
or, x=- 4
Hence, option (a) has the same solution.
By solving option (b)
2(2x+3)=3(x+1),
or, 4x+6=3x+3
or, x= -3
Option (b) does not satisfies the condition.

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