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Equations with two variables of the standard form are called linear equations in:

ATwo variables
BOne variable
CThree variables
DNo variables
Answer & Solution
Correct answer: A. Two variables
1. The number of variables names the equation type. 2. Equations with two variables may take a standard form. 3. Equations of this form are called linear equations. 4. They are linear equations in two variables. _Source: OpenStax Elementary Algebra 2e (CC BY 4.0), Ch 4 'Graphs', sections 4.1-4.7_
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