Question

Luis deposited $200 into his bank account. He now has $4,477. Enter and solve an equation to find howmuch was in his account before the deposit. Let a represent the variable,

Answer 1

1)Let's use a variable x to represent the amount of money, Luis had before he had invested $200:

x,

Since it is unknown to us. X stands for the money previous to Luis' deposit.

2) To write an equation for that is to simply express it, that way:

x +200 =4,477

3) Evaluating for x,

Subtracting 200 from both sides we'll have:

x+200-200=4,477-200

x=4277

So, the amount of money prior to the deposit is $4277.