1.   Use the substitution method to solve m - n = 7 and 3m + 2n = 6.
    A. (-3, -10) B. (-5, 2)
    C. (4, -3) D.
    Hint

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

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

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

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



Glencoe
The McGraw-Hill Companies