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

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

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

  4.   Use substitution to solve the system of equations given by x – 4y = 24 and 3x – 4y = 16.
    A. (10, 3.5) B. (10, -3.5)
    C. (-4, 7) D. (-4, -7)
    Hint

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



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