Question

Q3. What should be subtracted from the thrice the rational number-8/3 to get 5/2?
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Answer 1

Answer:

1. Using algebra: 3(-8/3) - x =(5/2)

      x=(-16-5)/2

       x= -21/2  

2. We can verify this by the following:

      3(-8/3) + 21/2=x

        x=5/2

We must subtract -21/2 from thrice the rational number -(8/3) to get 5/2

Answer 2

Answer:

21/2

Step-by-step explanation:

let unknown no. be x

3(-8/3) - x = 5/2

-24/3 - x = 5/2

-8 - x = 5/2

-x = 5/2 - 8

-x = 5/2 - 16/2

-x = -11/2

x = 21/2