Question

After writing a $700 check to pay a bill, a student had a balance of $650 in his account. How much did he have in the account before he wrote the check? a) Let x = his balance before writing the check. Write the equation you would use to solve this problem b) Now solve your equation His starting balance was $

Answer 1

Given that the student wrote a $700 check, and had a balance of $650 in his account after writing the check.

To find how much he had before writing out the check, we would create a linear equation to do this.

Let x = His balance before writing the check.

Therefore, we would have the linear equation below, which is gotten when we subtract the check from how much he had before.

`\begin{gathered} \therefore Linear\text{ equation} \\ x-700=650 \\ \end{gathered}`

ANSWER 1: x-700 =650

The next step is to solve for his starting balance.

`\begin{gathered} x-700=650 \\ x=650+700 \\ x=1350 \end{gathered}`

Therfore