Solve the System by the Substitution Method $$\left\{ \begin{array} { r } x + 7 y = - 2 \\3 x + y = 34\end{array} \right.$$

question 38

Multiple Choice

Solve the system by the substitution method.
- $$\left\{ \begin{array} { r } x + 7 y = - 2 \\3 x + y = 34\end{array} \right.$$

• A) \(\varnothing\)
• B) \(\{ ( x , y ) \mid x + 7 y = - 2 \}\)
• C) \(\{ ( 12 , - 2 ) \}\)
• D) \(\{ ( - 2,3 ) \}\)

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Definitions:

Deposit

A sum of money placed into an account or given as a part payment towards a purchase, often to secure it or show commitment.

Check Register

A record of financial transactions, especially checks written and deposits made, in a checking account.

Deposit

A sum of money placed into an account or with a financial institution as a part of a transaction or for safekeeping.

Check Register

A record book or a ledger that tracks all the checks written, deposits made, and current balance of a checking account.