Examlex
According to your text, social class determines a family's financial security and
Variables
Symbols in mathematics that represent unknown quantities or can take on various values in an equation or expression.
Solution
The value or values that satisfy an equation or inequality.
Elementary Row Operation
A procedure used in matrix algebra involving row swapping, row multiplication, or row addition, aimed at simplifying matrices or solving systems of linear equations.
Matrix
A rectangular array of numbers, symbols, or expressions, arranged in rows and columns that is used in mathematics to solve systems of linear equations and perform various algebraic operations.
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