Question

a rational number is such that when you multiply it by5/2 and add 2/3 to the product, you get —7/12. what is the number?

Answer 1

Let the rational number be x.
ATQ,
x*5/2
5x/2+2/3
x=-1/2...

Answer 2

Let the required number be x
According to the question
5x/2+2/3= -7/12
5x/2=-7/12-2/3
5x/2=-15/12
x=-15/12×2/5
x=-1/2