Solve a system of equations using elimination
Solve a system of equations using elimination
What you'll learn
- Identify the coefficients of variables in a system of equations to determine if elimination is a viable solution method with at least 80% accuracy.
- Solve a system of two linear equations using the elimination method, showing all steps clearly, with 75% accuracy on assigned problems.
- Explain, in writing, the steps involved in the elimination method and justify why each step is mathematically valid in at least two different examples.
- Apply the elimination method to solve real-world problems represented by systems of equations and interpret the solution in the context of the problem with 70% accuracy.
Tutorial Preview
Solve: x + y = 5 and x - y = 1
Solve: 2x + 3y = 8 and 2x + y = 4
Solve: 3x + 2y = 7 and x + 3y = 7
Sample Practice Questions
Want to practice and check your answers?
Sign up to access all questions with instant feedback, explanations, and progress tracking.
Start Practicing FreeMore from System of linear equations
Mathematics for other grades
Frequently asked questions
What grade level is "Solve a system of equations using elimination"?
Solve a system of equations using elimination is a Grade 8 Mathematics lesson on ExcelOS.
What will I learn in Solve a system of equations using elimination?
You'll be able to: Identify the coefficients of variables in a system of equations to determine if elimination is a viable solution method with at least 80% accuracy; Solve a system of two linear equations using the elimination method, showing all….
Is "Solve a system of equations using elimination" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Solve a system of equations using elimination?
This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.