Solve the following system of equations by using the inverse of the coefficient matrix if it exists, and by the echelon method if the inverse doesn't exist. -x-4y = 14 2x+8y = -28 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. The solution of the system is (Simplify your answer. Type an ordered pair.) OB. The system has infinitely many solutions. The solution is (,y), where y is any real number. (Use integers or fractions for any numbers in the expression.) OC. There is no solution.
Solve the following system of equations by using the inverse of the coefficient matrix if it exists, and by the echelon method if the inverse doesn't exist. -x-4y = 14 2x+8y = -28 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. The solution of the system is (Simplify your answer. Type an ordered pair.) OB. The system has infinitely many solutions. The solution is (,y), where y is any real number. (Use integers or fractions for any numbers in the expression.) OC. There is no solution.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Solve the following system of equations by using the inverse of the coefficient matrix if it exists, and by the echelon method if the inverse doesn't exist.
- x - 4y = 14
2x+8y = -28
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The solution of the system is.
(Simplify your answer. Type an ordered pair.)
B. The system has infinitely many solutions. The solution is (, y), where y is any real number.
(Use integers or fractions for any numbers in the expression.)
C. There is no solution.
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