Math Problem Statement

y=6x-11 -2x-3y=-7

Solution

You have a system of linear equations:

  1. y=6x11y = 6x - 11
  2. 2x3y=7-2x - 3y = -7

Let's solve it step by step.

Step 1: Substitute y=6x11y = 6x - 11 into the second equation.

Substitute the expression for yy from the first equation into the second equation:

2x3(6x11)=7-2x - 3(6x - 11) = -7

Step 2: Simplify the equation.

Distribute the 3-3 through the parentheses:

2x18x+33=7-2x - 18x + 33 = -7

Combine like terms:

20x+33=7-20x + 33 = -7

Step 3: Solve for xx.

Subtract 33 from both sides:

20x=733-20x = -7 - 33

20x=40-20x = -40

Now, divide both sides by 20-20:

x=4020=2x = \frac{-40}{-20} = 2

Step 4: Solve for yy.

Now that we know x=2x = 2, substitute this value into the first equation y=6x11y = 6x - 11:

y=6(2)11=1211=1y = 6(2) - 11 = 12 - 11 = 1

Solution:

The solution to the system of equations is: x=2,y=1x = 2, \quad y = 1

Would you like a more detailed explanation, or do you have any further questions?

Here are 5 related questions to explore:

  1. How would you solve this system using the substitution method?
  2. What would happen if you used the elimination method to solve this system?
  3. How do you recognize when a system has no solution or infinitely many solutions?
  4. Can you represent the solution of this system graphically?
  5. How would you solve a system of linear equations with three variables?

Tip: When solving a system of equations, always check your solution by substituting the values back into the original equations!

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Math Problem Analysis

Mathematical Concepts

System of Linear Equations
Substitution Method
Algebra

Formulas

y = 6x - 11
-2x - 3y = -7

Theorems

Substitution Method for Solving Linear Equations

Suitable Grade Level

Grades 7-9