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Ryan, Engineer
Category: Math Homework
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Experience:  B.S. in Civil Engineering
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# If someone has 348 dollars in their account and made a

If someone has 348 dollars in their account and made a payment of 234 dollars,deposited 147 dollars and withdrew 85 dollars what is amount and nature of final transaction if at end of week her account shows balance of -43 ?

Hi,

Thank you for using the site. Here is the solution:

After making the listed transactions, the account balance would be:

348 - 234 + 147 - 85 = 176

If the next transaction causes the balance to be -43, then either a payment or a withdrawal has been made.

The amount of the last transaction is 176 + 43 = 219

Solution: The final transaction was a payment or a withdrawal of \$219.

Thanks,

Ryan

Customer: replied 1 year ago.
Can it all be done in one operation as a chain of operations with positive and negative integers?

Yes. It would look like this:

Let x represent the unknown final transaction. Then you would write:

348 - 234 + 147 - 85 + x = -43

You would then rearrange this to isolate the variable x on one side to get:

x = -43 - 348 + 234 - 147 + 85

x = -219

Since the value of x is negative, this indicates that the final transaction removed \$219 from the account.

Therefore, the final transaction was either a payment or a withdrawal of \$219.

Customer: replied 1 year ago.
Thank you. That is what I needed. Have a great evening.

You're quite welcome. I'm glad that I could help.