Jason's bank account balance was $300. He paid 1/4 of his bills. Now, his account balance is - $50.

Which equation can be used to find x, the total dollar amount of his bills?

The answer to this is $1,400

Step-by-step explanation:

An equation you can use is x = (300 + 50) * 4

To solve this you first have to figure out how much was taken out, so you have to add the 300 that was already in the account with the negative balance which was 50. So it's 300 + 50, but that was just one-fourth of the total cost of the bills. So you simply multiply 350 by 4 and you get your answer.