Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
7. Systems of Equations & Matrices
Two Variable Systems of Linear Equations
Problem 3a
Textbook Question
In Exercises 1–4, determine whether the given ordered pair is a solution of the system.
(2, 5)
2x + 3y = 17
x + 4y = 16![Ordered pair (2, 5) with two linear equations for a systems of equations exercise.](https://lightcat-files.s3.amazonaws.com/problem_images/b2f7e3f00b49fe74-1678180661240.jpg)
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1
Step 1: Identify the given ordered pair (2, 5) and the system of equations: 2x + 3y = 17 and x + 4y = 16.
Step 2: Substitute x = 2 and y = 5 into the first equation: 2(2) + 3(5) = 17.
Step 3: Simplify the left-hand side of the first equation: 4 + 15 = 17.
Step 4: Check if the simplified left-hand side equals the right-hand side of the first equation: 19 = 17 (False).
Step 5: Since the first equation is not satisfied, the ordered pair (2, 5) is not a solution to the system of equations.
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