Correct: Variable: A symbol (usually a letter) that represents an unknown quantity., Constant: A value in an expression that does not change., An expression is a combination of numbers, variables, and symbols to be calculated., An equation contains expressions that are separated by an equals sign., Isolate the variable: To get a variable alone on one side of the equation in order to solve the equation., Inverse Operations: Operations that undo each other; addition/subtraction, or multiplication/division.., Distributive Property: A(B + C) = AB + AC, Like Terms: Terms whose variables are the same., System of Equations: two or more related linear equations, Solution: any value for a variable that makes an equation or inequality true, Solution of a system: the points (x,y) at which both lines that represent a system intersect, No Solution: in a system of linear equations this means the lines are parallel, Infinite Solution: in a system of linear equation this means they are collinear (the same line), Incorrect: Variable: A value in an expression that does not change., Constant: A symbol (usually a letter) that represents an unknown quantity., An equation is a combination of numbers, variables, and symbols to be calculated., An expression contains expressions that are separated by an equals sign., Isolate the Variable: Operations that undo each other; addition/subtraction, or multiplication/division., Inverse Operations: To get a variable alone on one side of the equation in order to solve the equation., Distributive Property: A(B + C) = AB + C, Like Terms: Terms whose variables are different., System of Equations: one linear equation, Solution: any value for a variable that makes an equation or inequality false, Solution of a System: the points (x,y) at which none of the lines that represent a system intersect, No Solution: in a system of linear equation this means the collinear (same line), Infinite Solution: in a system of linear equations this means the lines are parallel,

Solving Linear and Systems of Equations

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