Question

You deposit a cheek for $236.70 into your savings account. Your account has a balance of $319.23 after the deposit. How do you find the balance of your saving account before the deposit?

Answer 1

The balance in the saving account before the deposit was $82.53

Explanation:

Let `a` be your balance after the deposit, `b` be the balance before the deposit and `d` be the amount of the deposit.

Then `a = b + d`

We know `a` = $319.23 and we know `d` = #236.70.

Substituting these into the equation gives:

$319.23 = `b` + $236.70

Solving for `b` while keeping the equation balanced gives:

$319.23 - 236.70 = `b` + $236.70 - $236.70

$82.53 = `b` + 0

`b` = $82.53