Manipal Entrance Test 2013 Math Paper

Question : 72 of 80

Marks: +1, -0

G is a set of all rational numbers except - 1 and * is defined by a * b = a + b + ab for all a, b ∈ G, in the group (G. *), the solution of 2‌−1 * x *3‌−1 = 5 is