Section 3.1

One-Step Equations

Properties:         Additive property of equality        }        What you

                Subtraction property of equality        }        do to one

                Multiplication property of equality        }        side you have

                Division property of equality        }        to do the other

Addition:                Subtraction:                Multiplication:        Division:

x - 7 = 22                x + 2 = -9                    x/9 = 3                   5x = 20

   +7 = +7                   - 2 = - 2                (9)x/9 = 3(9)                5x/5 = 20/5

     x = 29                      x = -11                       x = 27                     x = 4