We want to find the coeficient of the y terms when added together so find all the y terms
+12y and +2y
we add them together
12y+2y=(12+2)y=(14)y=14y
coeficient is 14
the constant is the number that is set already or the number that doesn't have it multiplied by a placeholder exg. 4 is a constnat but 4x is not so find the constants
+5 and +8
we add
5+8=13
the constant is 13
y coeficient=14
constant=14
Answer:
9. 7/2
10. -6
Step-by-step explanation:
Answer:
Step-by-step explanation:

Answer:
The total change in the amount of money in my account is $ 9.60
Step-by-step explanation:
Given:
Amount of money deposited each week, 
Amount of money withdrawn each week, 
∴ Amount of money deposited in 4 weeks, 
∴ Amount of money withdrawn in 2 weeks, 
Now, amount of money left in the account is the difference of the two amounts.
So, amount left = 
Therefore, the total change in the amount of money in my account is given as:
Total change = Initial amount after 4 weeks - Final amount in the account.
Total change = $ 50 - $40.4 = $ 9.6