A bar model can be used to a subtraction problem by showing how much of it your actually losing or winning so subtract the totals and you have gotten your answer.
Answer:
Step-by-step explanation:
Add 
and 
on both sides.
Add or subtract like terms.
Divide 
on both sides.
is the independent variable now.
The mixed number is 1 and 7/8 because 15 minus 8 equals 7/8 and since you went over the whole (8/8) it is 1 plus 7/8 which equals 1 and 7/8.
It's okay that you might not be good in math that's why we will help.
Lol i sound like a whole teacher
Answer:
2.5(x-1)+4.5(-x-2)
2.5x-2.5-4.5x-9
-2x-11.5
Step-by-step explanation:
In order to arrive at the answer, take the total (251) and subract it by 148. J = 103
