Math Problem Statement

Solve the system of linear equations: 2x - 5y = -17 and 2x + 3y = 23. Subtract the second equation from the first and solve.

Solution

The image contains a system of equations:

2x - 5y = -17 & \text{(Equation 1)} \\ 2x + 3y = 23 & \text{(Equation 2)} \end{cases}$$ The instructions seem to suggest subtracting Equation (2) from Equation (1) to eliminate the variable $$x$$. Let's go through the steps: ### Step 1: Subtract Equation (2) from Equation (1) $$(2x - 5y) - (2x + 3y) = (-17) - 23$$ Simplifying: $$2x - 5y - 2x - 3y = -17 - 23$$ $$-8y = -40$$ $$y = 5$$ ### Step 2: Substitute $$y = 5$$ into one of the original equations (we'll use Equation 2): $$2x + 3(5) = 23$$ $$2x + 15 = 23$$ $$2x = 8$$ $$x = 4$$ ### Final Answer: $$x = 4, \quad y = 5$$ Let me know if you would like further clarification or details on this solution! Here are 5 related questions: 1. How do you solve a system of equations using substitution? 2. What happens if both equations have the same slope? 3. How can you verify the solution to a system of equations? 4. Can a system of equations have no solution? What does that mean graphically? 5. How does the elimination method differ from substitution in solving systems of equations? **Tip:** When solving a system of linear equations, always simplify and double-check by substituting the values back into the original equations to verify accuracy.

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Math Problem Analysis

Mathematical Concepts

Algebra
Systems of Linear Equations
Elimination Method

Formulas

2x - 5y = -17
2x + 3y = 23

Theorems

System of Equations: Subtraction Method
Substitution Method

Suitable Grade Level

Grades 8-10