Answer :
Equation - x = -3/10 + (10-1)
The original number is 9.3 because
x = -3/10 + (10-1)
x = -3/10 + 9
x = 9.3
The original number is 9.3 because
x = -3/10 + (10-1)
x = -3/10 + 9
x = 9.3