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8M - 1.6 and Review

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  • A symbol or letter that is used to represent a value that can change is called a _____.
    Variable
  • Find an equation for the word problem: "Two less than a number is -8."
    x - 2 = -8
  • Find an equation for the word problem: "The sum of 5 and a number is -72."
    x + 5 = -5
  • A value that does not change is called a _____.
    Constant
  • Solve (b/4) + a*24 = c for b
    b = (c - a*24)*4
  • Solve for c
    c = (-4/9)*p
  • Find an equation for the word problem: "The difference of a number and 3 is 9."
    x - 3 = 9
  • Solve: 7a - 33 = x for a
    a = (x + 33)/7
  • An equation that states a rule for a relationship among quantities.
    Formula
  • A mathematical statement where two expressions are shown to be equal is called an _____.
    Equation
  • Solve for r
    r = 7 - ax