Question

rational number is just that when you multiply it by 5/2 and add 3/2 the products you get - 7/12 what is the number​

Answer 1

suppose that number is X

$(x \times \frac{5}{2} ) + \frac{3}{2} = \frac{7}{12} \\ \frac{5x}{2} + \frac{3}{2} = \frac{7}{12} \\ \frac{5x + 3}{2} = \frac{7}{12} \\ 5x + 3 = \frac{7}{12} \times 2 \\ 5x + 3 = \frac{7}{6} \\ 5x = \frac{7}{6} - 3 \\ 5x = \frac{7 - 18}{6} \\ x = \frac{ - 11}{6} \times \frac{1}{5} \\ x = \frac{ - 11}{30}$

so,that number is ....-11/30 Ans...