Math Problem Statement

Solve the system of equations.

x = 4y + 8

x = 2y + 6

Solution

To solve the system of equations:

x=4y+8x = 4y + 8 x=2y+6x = 2y + 6

Step 1: Set the two equations equal to each other

Since both equations are equal to xx, we can set the right-hand sides of the equations equal to each other:

4y+8=2y+64y + 8 = 2y + 6

Step 2: Solve for yy

Simplify and solve for yy:

4y2y=684y - 2y = 6 - 8 2y=22y = -2 y=1y = -1

Step 3: Solve for xx

Substitute y=1y = -1 into either equation to find xx. Using the first equation:

x=4y+8x = 4y + 8 x=4(1)+8x = 4(-1) + 8 x=4+8x = -4 + 8 x=4x = 4

Final Solution:

x=4,y=1x = 4, \, y = -1

Let me know if you'd like further clarification or a detailed breakdown! Here are some related questions you might explore:

  1. How can this solution be represented graphically?
  2. How would the solution change if the second equation were x=2y+kx = 2y + k?
  3. What if the two equations represented parallel lines? How would that affect the solution?
  4. What happens if we add a third equation to the system?
  5. How does solving a system of equations relate to matrices?

Tip: Always verify your solution by substituting back into both equations!

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Systems of Equations
Linear Equations

Formulas

Equating two linear equations to find common solutions
Substitution method for solving systems of equations

Theorems

Equality Property of Equations

Suitable Grade Level

Grades 8-10