1.   Solve 5 - =
    A. 5 B. 15
    C. -5 D. -15
    Hint

  2.   An equation that is true for every value of the variable is called a(n) ______.
    A. representation B. empty set
    C. equivalency D. identity
    Hint

  3.   Solve the equation y = -3y + 4.
    A. y = -2 B. identity
    C. y = 16 D. y = 1
    Hint

  4.   Solve the equation b + 3 = b.
    A. b = -1 B. b = 5
    C. no solution D. b = -9
    Hint

  5.   Solve the equation
y + 2 – 3y = 3 – 2y – 1.
    A. y = 1 B. identity
    C. no solution D. y = -1
    Hint



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