Question

What should be subtracted from thrice the rational number -8/3 to get5/2

Answer 1

yes the answer is 

x=21/2

u can come to msg section if u want it in detail so that i can tell u how i did it

Answer 2

Thrice -8/3 = -8
Now -8-x=5/2
-x=5/2+8
-x=16+5/2
-x=21/2
X=-21/2
X=-10.5