Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.

Like this presentation? Why not share!

2,883 views

Published on

Lesson over one-step equations I made for my 8th graders.

No Downloads

Total views

2,883

On SlideShare

0

From Embeds

0

Number of Embeds

27

Shares

0

Downloads

138

Comments

0

Likes

2

No embeds

No notes for slide

- 1. SOLVING 1-STEP INTEGER EQUATIONS Objective: To solve one-step integer equations using addition, subtraction, multiplication, and division
- 2. Solve an Equation <ul><li>To find all values of a variable that make an equation true </li></ul>
- 3. <ul><li>A one-step equation is as straightforward as it sounds. </li></ul><ul><li>You will only need to perform one step in order to solve the equation. </li></ul>
- 4. Solving One-Step Equations <ul><li>Inverse Operation </li></ul><ul><li>Operations that “undo” each other </li></ul><ul><li>For example, addition “undoes” subtraction and subtraction “undoes” addition. </li></ul><ul><li>Multiplication is the inverse of division </li></ul>
- 5. Solving Equations Using Addition or Subtraction : <ul><li>If a number has been added to the variable, subtract that number from both sides of the equation. </li></ul><ul><li>If a number has been subtracted from the variable, add that number to both sides of the equation. </li></ul>
- 6. Example 1: Solve m + 7 = 11 <ul><li>m + 7 = 11 </li></ul>To undo the addition of 7, subtract 7 from both sides of the equal sign. - 7 -7 m = 4 Check the solution. m + 7 = 11 Replace the variable with your answer. (4) + 7 = 11 11 = 11
- 7. Example 2: Solve -6 = m - 4 <ul><li>-6 = m - 4 </li></ul>To undo the subtraction of 4, add 4 to both sides of the equal sign. +4 +4 -2 = m Check the solution. -6 = m - 4 Replace the variable with your answer. -6 = (-2) - 4 -6 = -6
- 8. Practice <ul><li>j - 3 = -12 -4 + r = 26 </li></ul>+3 +3 j = - 9 +4 +4 r = 30
- 9. Solving Equations Using Multiplication or Division <ul><li>If a variable has been multiplied by a nonzero number, divide both sides by that number. </li></ul><ul><li>If a variable has been divided by a number, multiply both sides by that number. </li></ul>
- 10. <ul><li>3 y = 261 </li></ul>To undo the multiplication by 3, divide 3 from both sides of the equal sign. 3 3 y = 87 Check the solution. 3 y = 261 Replace the variable with your answer. 3(87) = 261 261 = 261 Example 3: Solve 3y = 261
- 11. <ul><li>- 1 w = 42 </li></ul>To undo the multiplication of -1 , divide both sides by -1. -1 -1 w = -42 Check the solution. -w = 42 Replace the variable with your answer. - (-42) = 42 42 = 42 Example 4: Use the multiplication property of - 1 - w = 42 -1 is being multiplied to w
- 12. Practice <ul><li>-6 x = -36 b = 12 </li></ul>-6 -6 x = 6 (-4) -4 (-4) b = -48

No public clipboards found for this slide

×
### Save the most important slides with Clipping

Clipping is a handy way to collect and organize the most important slides from a presentation. You can keep your great finds in clipboards organized around topics.

Be the first to comment