Description

6 steps: (1) A VARIABLE is a letter (x, y, n) that represents an unknown number. (2) An EXPRESSION is a math phrase with variables and operations: 3x + 5, 2y - 1, 4(n+2). (3) TERMS: parts separated by + or -. In '3x + 5', terms are 3x and 5. (4) COEFFICIENT: the number multiplied by the variable. In

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