Question

Last week, Marcus had a balance of - $10 in his savings account. This week, the balance is $10. Which equation would show the change,c, in his savings account...?
A. -10 + c =10
B. c + 10 =10
C. c + -10 =-10
D. -10 - c =-10

Answer 1

The correct answer is:  [A]:  " -10 + c = 10 " .
________________________________________________________
Explanation:
________________________________________________________
 
The beginning balance is:  " -$10 ". 

The "ending balance", or "current balance", is:  "$10" .
_________________________________________________________
So, the beginning balance is a "negative value", or a "deficit".

To get the change, "c" , 

either:  " 10 − c = -10 " ; 
________________________________
or:  " -10 + c = 10 " .
________________________________

Among the answer choices given, the correct answer choice provided is:
______________________________________________________

Answer choice:  [A]:   " -10 + c = 10 " .
______________________________________________________