7. Which of the following defines a system of linear equations?
a. A set of two or more linear equations that have a common variable.
b. A set of two or more linear equations that have no common variables.
c. A set of two more linear equations that have common variables
d. A set of two or more linear and non-linear equations that have no common variables.
a. A set of two or more linear equations that have a common variable.
b. A set of two or more linear equations that have no common variables.
c. A set of two more linear equations that have common variables
d. A set of two or more linear and non-linear equations that have no common variables.
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Answer:
a.
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Step-by-step explanation:
In mathematics, a system of linear equations is a collection of one or more linear equations involving the same set of variables