Question

A rational number such as that when you multiply it by 5/2 and add 2/3 to the product, you get -7/12. What is the number?
​

Answer 1

let it be X

so the expression is 5x/2 + 2/3 = -7/12

= 5x/2 = -7/12 -2/3

= 5x/2 = -15/12

= X = -15/12 * 2/5

= X = -1/2

so the answer is -1/2