1. Bell Ringer Can x be 13 in the equation x + (– 7) = 20 ?
If yes, double check your work by putting it into the original equation and solve
If no, find the correct answer.

2. Objectives SWBAT solve two-step linear equations;
SWBAT define <, >, ≠, ≥, and ≤;
SWBAT solve one-step linear inequalities.

3. Schedule Bell Ringer; Pass Out Homework [4] Website
Two-step linear equations continued [12 to 15 minutes]
Defining inequality signs [5]
Writing and solving linear inequalities
Exit Ticket (last 5)

4. Website

5. Two-step Linear Equations
The Green Bay Packers (last game) scored 38 points, three of which were from field goal points. Using seven points for a touchdown, find out how many touchdowns they scored.
What don’t we know? Give it a variable and write an equation to solve.

6. Two-step Linear Equations
331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students were in each bus?

7. Signs < means less than 3 < 8 > means greater than 4 > -2
≠ means not equal to 9 ≠ 13
≤ less than or equal to x ≤ 7
≥ greater than or equal to d ≥ 5

8. Inequalities
Inequality is a comparison between two values that are not equal.
Racing example
Like linear equalities but DIRECTION OF INEQUALITY matters.

9. Inequalities Continued
Adding, subtracting, multiplying, or dividing on both sides until the variable is isolated.
DIRECTION CHANGE if rewriting to have variable on the left OR multiplying/dividing both sides by a negative number.

10. Examples
12 < x + 5
–5x > 25

11. Bell Ringer Make this into a term with a positive exponent: 7 −3 8 −13
7 − −13
9 − −8

12. Objectives SWBAT persevere through logic puzzles.
Mathematical Practice 1

13. Schedule
Bell Ringer
Website
Week’s schedule
Coordinate Grid Puzzles

14. Website