Solving Multi Step Equations
- 1. March 1, 2006 Mr. Galilei Monessen High School Algebraic Equations SOLVING MULTI-STEP EQUATIONS Powerpoint hosted on www.worldofteaching.com Please visit for 100’s more free powerpoints
- 2. Algebraic Equations Multiplication with Subtraction 2x – 4 = 8 +4 +4 2x = 12 2 2 x = 6
- 3. Algebraic Equations Multiplication with Addition 5x + 10 = 80 -10 -10 5x = 70 5 5 x = 14
- 4. Algebraic Equations Multiplication with Subtraction -3x – 4 = -82 +4 +4 -3x = -78 -3 -3 x = 26
- 5. Algebraic Equations Multiplication with Addition 2/3x + 2 = 8 -2 -2 x = 6 x = 18/2 = 9 (HINT) Reciprocal 2 3 3 2 3 2
- 6. Algebraic Equations Division with Addition x/5 + 2 = 8 -2 -2 = 6 x = 30 x 5 (5) (5)
- 7. Algebraic Equations C.L.T. -20 -20 10x = 60 10 4x +6x + 20 = 80 10x + 20 = 80 10 x = 6 ( )
- 8. Algebraic Equations C.L.T. -12 -12 5x = 80 5 3x + 2x + 20 - 8 = 92 5x + 12 = 92 5 x = 16 ( ) ( )
- 9. Algebraic Equations C.L.T. -12 -12 2x + 12 = 122 2 6x + 15 = 125 + 4x 6x – 4x + 12 = 122 + 4x – 4x 2 2x = 110 ( ) ( ) X = 55
- 10. ( ) 10x – 3x -12 = 4x – 9x + 48 Algebraic Equations Distributive Property 2(5x – 6) – 3x = 4(x + 12) – 9x 10x – 12 - 3x = 4x + 48 – 9x ( ) ( ) 7x - 12 = -5x + 48 7x + 5x - 12 = 48 12x - 12 = 48
- 11. 12 12 +12 +12 X = 5 7x + 5x - 12 = 48 12x - 12 = 48 12x = 60 Algebraic Equations Distributive Property
- 12. THE END Homework: Study Review Sheet Test Tomorrow!! Use Worksheets & Notes to review and practice for the test.