Examlex
A(n) ___________ is a streak of light and an atmospheric phenomenon, also known as a shooting star.
Back-substitution
A method used in algebra to solve systems of equations by solving one equation first and then substituting its value into other equations.
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.
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