Question

What should be added to 7.3 to get 0.862

Answer 1

let the number be x

7. 3+x=0.862

x=0.862-7.3

x=-6.438

Answer 2

let the number be X.
so,7.3+X=0.862
X=0.862-7.300
X= -7.438
hence required number is -7.438...........