1. Solving One-Step Equations Unit 10

2. To Solve an Equation 1.Isolate the variable – get the letter by itself Inverse Operation 2.Use the Inverse Operation to isolate the variable. 1.Addition Subtraction 2.Multiplication Division

3. when a number sits next to a variable with nothing in between the two, the operation is multiplication. EX: 2x=16 Multiplication

4. Number to move: the “2” 2x = 16 Operation being used: “x” Opposite of “x”: “  ” Example: x = 8 2 2

5. Divide each side by negative 3 x = -7 -3x = 21 -3

6. Examples

7. When a number is written as a fraction, the operation is division. Division

8. Number to move: the “2” x = 8 Operation being used: “  ” Opposite of “  ”: “x” 2

9. Multiply each side by 2 x = 16 x = 8 2 (2)

10. Examples

11. Balance http://nlvm.usu.edu/en/nav/frames_asid_201_g_3_t_2.html? open=instructions&from=category_g_3_t_2.html http://nlvm.usu.edu/en/nav/frames_asid_201_g_3_t_2.html? open=instructions&from=category_g_3_t_2.html

12. Homework Page # http://www.brainpop.com/math/algebra/equationswithvariables/