Math Problem Statement

Solve the system of equations: 2y + x = 6 and 2y - 3x = -2.

Solution

The image shows a system of two linear equations:

2y+x=62y + x = 6 2y3x=22y - 3x = -2

Let's solve this system of equations. One way to approach it is to use substitution or elimination. I'll proceed with the substitution method.

Step 1: Solve the first equation for xx.

From the first equation, solve for xx:

2y+x=6x=62y2y + x = 6 \quad \Rightarrow \quad x = 6 - 2y

Step 2: Substitute x=62yx = 6 - 2y into the second equation.

Substitute this expression for xx into the second equation:

2y3(62y)=22y - 3(6 - 2y) = -2

Step 3: Simplify and solve for yy.

Distribute the 3-3 across the parentheses:

2y18+6y=22y - 18 + 6y = -2

Now combine like terms:

8y18=28y - 18 = -2

Add 18 to both sides:

8y=168y = 16

Divide both sides by 8:

y=2y = 2

Step 4: Substitute y=2y = 2 into the expression for xx.

Now that we know y=2y = 2, substitute this into x=62yx = 6 - 2y:

x=62(2)=64=2x = 6 - 2(2) = 6 - 4 = 2

Final Answer:

The solution to the system of equations is: x=2,y=2x = 2, \quad y = 2

Would you like more details or further clarification? Here are some related questions you might find helpful:

  1. What are the different methods to solve a system of linear equations?
  2. How can you verify the solution to a system of linear equations?
  3. What happens if the system of equations has no solution or infinitely many solutions?
  4. How can you solve a system of equations using matrices?
  5. How can the graph of a system of equations be interpreted geometrically?

Tip: Always check your solution by substituting the values back into the original equations!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Substitution Method

Formulas

2y + x = 6
2y - 3x = -2

Theorems

Substitution method for solving systems of equations

Suitable Grade Level

Grades 7-9