If you are talking about building blocks, then you would get one 10 and 3 ones, then subtract that from 7 ones and would get 6
(1) You can see that the 6 is being added to both sides.
You are trying to make both sides equal by adding 6, so it would be the Addition Property of Equality.
(2) 4 is being divided into both sides.
It would be the Division Property of Inequality. (you are dividing by 4 to make both sides equal)
"B" is the answer.
I hope this helps!
~kaikers
2,852.1 miles / 10 days = about 285.21 miles per day .
=0 is the answer to the equation