SOLUTION: Karla's credit card bill is $420.90. Part of the bill is from the previous month's balance, part is in new charges, and part is from a late fee of $39. The previous balance is $172

Question 680905: Karla's credit card bill is $420.90. Part of the bill is from the previous month's balance, part is in new charges, and part is from a late fee of $39. The previous balance is $172.40 less than the new charges. How much is the previous balance and how much is in new charges?
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
x = money in new charges

420.90 = 39 + x + (x - 172.40)
554.30 = 2x
x = 277.15

new charges = x = $277.15
prev. balances = x - 172.40 = $104.75
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