Solving one step equations
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This document defines terms and concepts for solving one-step equations. It explains that a one-step equation can be solved using addition, subtraction, multiplication, or division by performing the inverse operation on both sides of the equation. Examples are provided for solving equations involving addition, subtraction, multiplication, and division.
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Solving one step equations
- 2. Definitions Term : a number, variable or the product or quotient of a number and a variable. Created by S. Koch - 2003 X 2w c 3
- 3. Terms are separated by addition (+) or subtraction (-) signs. 3a – 2/5b + 7x – 4z + 52 Created by S. Koch - 2003 How many Terms do you see? 5
- 4. Definitions Constant : a term that is a number. Coefficient : the number value in front of a variable in a term. Created by S. Koch - 2003
- 5. 3x – 6y + 18 = 0 What are your coefficients? What is your constant? Created by S. Koch - 2003 3 , -6 18
- 6. Solving one-step equations : A one-step equation means you only have to perform 1 mathematical operation to solve it. You can add , subtract , multiply or divide to solve a one-step equation. Created by S. Koch - 2003
- 7. Solving an addition equation : t + 7 = 21 Get rid of the 7 by adding its opposite to both sides of the equation. t + 7 = 21 Created by S. Koch - 2003 -7 -7 t = 14 Example 1
- 8. Solving a subtraction equation : g – 6 = 40 Get rid of the 6 by adding its opposite to both sides of the equation. g – 6 = 40 Created by S. Koch - 2003 +6 +6 g = 46 Example 2
- 9. Solving a multiplication equation : 8n = 32 Get rid of the 8 by dividing both sides of the equation by 8. Here we “undo” multiplication by doing the opposite – division. Created by S. Koch - 2003 8n = 32 8 8 n = 4 Example 3
- 10. Solving a division equation : k / 9 = 11 Get rid of the 9 by multiplying both sides of the equation by 9. Here we “undo” division by doing the opposite – multiplication. k / 9 = 11 Created by S. Koch - 2003 x 9 x 9 k = 99 Example 4