Level 380 Level 382
Level 381

## Ignore words

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system of linear equations
What two or more linear equations form.
solution of a system of linear equations
any ordered pair that satisfies all the equations in a system
substitution method
In this method, solve an equation for one variable, then replace that solution in the other equation, and solve.
elimination method
The process of removing one of the variables in a system of equations using addition or subtraction in conjunction with multiplication or division and solving the system of equations.
consistent system
a system of equations or inequalities that has at least one solution
inconsistent system
a system of equations or inequalities that has no solution
independent system
a system of equations that has exactly one solution
dependent system
a system of equations that has infinitely many solutions
linear inequality
contains a single variable on either side of the inequality symbol.
solution of a linear inequality
a value or values that make the inequality true
system of linear inequalities
Two ore more linear inequalities together.
solution of a system of inequalities in two variables
Any ordered pair that satisfies all the inequalities in the system.