Lesson 3.3a Variables on Both Sides.notebook October 02, 2012 Multi­step equations : The sides of the equations need to be simplified before it can be solved. 3.3 Solving Equations with Variables on Both Sides Steps For Solving A Multi­Step Equation 1. Use the distributive property to remove parentheses on each side 2. Combine like­terms on each side 3. Make sure there are only variables on one side. 4. Undo addition or subtraction 5. Undo multiplication or division Sep 5­1:27 PM 7x ­ 1 = 6x +5 Sep 2­2:43 PM 7x ­ 1 = 6x +5 There are x's on both sides of the equal sign. We need to remove the x's on one side Sep 3­9:32 PM What if we had decided to move the 7x to the other side first? Sep 3­9:32 PM Try one on your own! 8 ­ 2x = 6x + 4 7x ­ 1 = 6x +5 Think: How can I start off with positive x's? Sep 3­9:32 PM Sep 3­10:20 PM 1 Lesson 3.3a Variables on Both Sides.notebook October 02, 2012 Variables on both sides 7w + 3 ­ 2w = 6 + 8w Sep 5­1:27 PM 2