1.   Use substitution to solve the system of equations given below.
    A. no solution B. infinitely many solutions
    C. (-10, -12) D. (-12, -10)
    Hint

  2.   Use substitution to solve the system of equations given below.
    A. infinitely many solutions B. no solution
    C. D. (-5, 5)
    Hint

  3.   Use substitution to solve the system of equations.
5x + 5y = -30
2x - y = 15
    A. (3, -9) B. no solution
    C. infinitely many solutions D. (21, 27)
    Hint

  4.   Use substitution to solve the system of equations given by y = 2x and 5x + y = 7.
    A. (-2, -5) B. (1, 2)
    C. (2, 5) D. (-1, -2)
    Hint

  5.   Use substitution to solve the system of equations given by y = and 28x – 32y = -8.
    A. no solution B. (2, 2)
    C. infinitely many solutions D. (1, 1)
    Hint



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