Math Problem Statement
Solve the system of linear equations by elimination.
$8x-5y=11$8x−5y=11
$4x-3y=5$
Solution
We are tasked with solving the system of linear equations using the elimination method:
Step 1: Eliminate one variable
To use elimination, we first manipulate the equations so that one variable has the same or opposite coefficient in both equations. Let's eliminate by multiplying equation (2) by 2:
This gives:
Now we have the system:
Step 2: Subtract the equations
Next, subtract equation (3) from equation (1) to eliminate :
Simplifying both sides:
Step 3: Substitute back into one of the original equations
Now that we know , substitute it into either of the original equations. Let's use equation (2):
Substitute :
Add 3 to both sides:
Solve for :
Final Answer:
The solution to the system of equations is:
Would you like more details or have any questions about this solution?
Here are 5 related questions for further practice:
- Solve the system of equations: and using elimination.
- Solve the system of equations: and using elimination.
- What is the elimination method and how does it compare to substitution for solving systems of equations?
- Solve the system of equations: and using elimination.
- Solve the system of equations: and using elimination.
Tip: When using elimination, it's crucial to ensure that the coefficients of one variable (either or ) match or are opposites in both equations. This will allow you to add or subtract the equations to eliminate that variable.
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Elimination Method
Formulas
Elimination method for solving systems of linear equations
Theorems
Linear system solutions using elimination
Suitable Grade Level
Grades 8-10
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