To fill the blanks with the appropriate word for the statement: system of equations can be solved by substituting one variable from one equation to other.
Answer to Problem 2E
The first step in solving a system of equations by the method of substitution is to solve any one equation for one variable in terms of the other.
Explanation of Solution
System of linear equations with two variable can expressed as follows:
Here, a , b and c are the constants. 1 and 2 are the subscript for equation one and 2 respectively.
Above system of equations can be solved by many of the methods such as:
- Elimination method.
- Graphical method.
- Substitution method.
- Gaussian-Jordan elimination method.
Substitution method
This method is method of solving system of linear equations by substituting value of one variable (say x ) of any of the equation to the other equation. This variable ( x ) can be evaluated. Then substitute this variable in any of the equations to get the value of other variable (say y ).
Thus, the first step in solving a system of equations by the method of substitution is to solve any oneequation for one variable in terms of the other.
Chapter 7 Solutions
EBK PRECALCULUS W/LIMITS
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning