Math Problem Statement

Solve the system of equations: 3x - y = 2 and x + 2y = 3.

Solution

This is a system of linear equations:

3xy=23x - y = 2 x+2y=3x + 2y = 3

To solve it, let's use the substitution or elimination method. I'll proceed with the substitution method by solving for xx from the second equation and then substitute it into the first equation.

  1. From the second equation: x=32yx = 3 - 2y

  2. Substitute x=32yx = 3 - 2y into the first equation: 3(32y)y=23(3 - 2y) - y = 2 Expanding: 96yy=29 - 6y - y = 2 Combine like terms: 97y=29 - 7y = 2 7y=29-7y = 2 - 9 7y=7-7y = -7 y=1y = 1

  3. Substitute y=1y = 1 back into the equation x=32yx = 3 - 2y: x=32(1)x = 3 - 2(1) x=32x = 3 - 2 x=1x = 1

Thus, the solution to the system is: (x,y)=(1,1)(x, y) = (1, 1)

Would you like a detailed step-by-step explanation, or do you have any questions about the process?


Here are 5 related questions to expand on this topic:

  1. How can you verify that a solution to a system of equations is correct?
  2. What are some alternative methods for solving a system of linear equations?
  3. How does the elimination method work for systems of linear equations?
  4. What happens if a system of equations has no solution or an infinite number of solutions?
  5. How can systems of equations be solved graphically?

Tip: When solving a system of equations, it's often helpful to check your solution by substituting back into the original equations.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Systems of Equations

Formulas

Substitution method: Solve for one variable and substitute in the other equation.

Theorems

Properties of equality in linear systems
Substitution method for solving systems of equations

Suitable Grade Level

Grades 8-10