Math Problem Statement

Solve the system of equations graphed on the coordinate axes below y=−2x+3.y=3x−7

Solution

To solve the system of equations by finding the point where the lines intersect, we have:

y=2x+3y = -2x + 3 y=3x7y = 3x - 7

Since both equations are equal to yy, we can set them equal to each other to solve for xx:

2x+3=3x7-2x + 3 = 3x - 7

Now, solve for xx:

  1. Add 2x2x to both sides: 3=5x73 = 5x - 7

  2. Add 77 to both sides: 10=5x10 = 5x

  3. Divide by 55: x=2x = 2

Now, substitute x=2x = 2 back into one of the original equations to find yy. Using y=2x+3y = -2x + 3:

y=2(2)+3y = -2(2) + 3 y=4+3y = -4 + 3 y=1y = -1

Thus, the solution to the system is the point (2,1)(2, -1).

Answer

The solution to the system is: (x,y)=(2,1)(x, y) = (2, -1)

Would you like more details on the method or any further questions?

  1. How do we interpret solutions of systems on graphs?
  2. Why do we set equations equal to solve systems algebraically?
  3. What are methods to solve systems if no graphs are given?
  4. How can systems with parallel lines be identified?
  5. What is the significance of a solution to a system in real-world applications?

Tip: When graphing, always check for slopes and intercepts first; they provide clues to intersection points.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Systems of Equations
Graphing

Formulas

Setting two equations equal to each other: -2x + 3 = 3x - 7
Solving for variables in linear equations

Theorems

Solution of systems of linear equations

Suitable Grade Level

Grades 8-10