Solve the Following System of Equations Using the Addition Method

question 13

Short Answer

Solve the following system of equations using the addition method:
2x + 3y = -1
4x - 9y = -17

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Definitions:

Markup Percentage

Markup Percentage is the difference between the cost of a product or service and its selling price, expressed as a percentage of the cost, used to determine the selling price.

Wholesale Price

The cost of goods sold in bulk to retailers or distributors, typically lower than retail prices.

Retail Price

The price for which retailers sell an item.

Expense Equation

A financial formula used to calculate the total expenses by summing all costs, both fixed and variable.