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

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

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

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

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



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