Solution, A value that makes an equation true., Expression, A math phrase that can contain numbers, variables (letters like x or y) and operators (like +, - , x, ÷)., Inverse Operation, Opposite operations that undo each other. Addition and subtraction are inverse operations. Multiplication and division are inverse operations., Variable, A symbol for an unknown value, it is usually a letter., Coefficient, A number used to multiply a variable., Term, Either a single number or variable, or numbers and variables multiplied together. Terms are separated by + or - signs., Formula, A mathematical expression or rule represented by numbers and letters., Literal Equations, An equation that uses variables for specific values.

Module 2 Lesson 4

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