Answer:
-5.144
Step-by-step explanation:
9.430
-4.286
you would line the decimals up, and then susbtract
6 can't go into 0 so you borrow and get 4 from 10-6
then you subtract 2-8, which you can't do so you borrow again and have 12-8=4
then you go 3-2 to get 1
then you go 9-4 to get 5
but you have to add a negative sign because the bigger number is negative