Solve by the Substitution Method $$\begin{array} { c } 7 x + 9 y = - 54 \\- 3 x - 4 y = 24\end{array}$$

question 3

Multiple Choice

Solve by the substitution method.
- $$\begin{array} { c } 7 x + 9 y = - 54 \\- 3 x - 4 y = 24\end{array}$$

• A) \(( - 1 , - 5 )\)
• B) \(( 0 , - 5 )\)
• C) No solution
• D) \(( 0 , - 6 )\)

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Definitions:

Inflation

The rate at which the typical cost levels of goods and services elevate, undermining the power to buy.

Real Rate

The interest rate adjusted for inflation, providing a more accurate indication of the borrowing cost or investment return in terms of real purchasing power.

Principal

The original sum of money borrowed in a loan, or the original amount invested, excluding any interest or dividends.

Inflation

The pace at which prices for general goods and services ascend, diminishing the capacity to purchase.