Question

what is the number that has to be added to thrice the rational number -15/3 to get 20/3​

Answer 1

Step-by-step explanation:

Let the number be x...

So, x + (-15/3)×3 = 20/3

=> x - 15 = 20/3

=> x = 20/3 +15 = 65/3 = 21⅔

The number is 21⅔

Answer 2

SOLUTION:

-15 = 20/3

-45/ 3 = 20/3

-45/3 + 65/3 = 20/3