1. Algebra 1 - Chapter 2 Test

2. 2A Writing expressions with variables Plugging values into expressions
Number games, real life
Plugging values into expressions
What is 2x + 5, if x=2?
Simplifying expressions
Combining like terms, distributive property, using arithmetic rules to play with variables

3. 2B Backtracking Reversing Operations
Solving equations using backtracking

4. 2C Solving equations with variables on both sides
Using expansion boxes to distribute
Figuring out how many solutions an equation can have

5. 2D Solving word problems
Use Guess-Check-Generalize to make equations that you can use to solve equations
Solving equations with multiple variables

6. Review Questions – 2A and 2B
Why do we need variables?
Simplify:
3(x – 1) + 4
8(2y + 3) + 2(y + 1)
2(3z – 4) – 4(3y – 2)
How do you reverse these operations?
Add 15
Multiply by 8
Divide by ½
Multiply by 0

7. Review Questions – 2B 4. Solve using backtracking: 1. 2x + 3 = 11

8. Review Questions – 2C Is x= -2 a solution of these equations?
2x + 7 = x – 4
3x – 2 = -4x – 16
4(x + 2) = 2x + 4
How many solutions will these equations have?
4(m + 6) – 12 = 2(m + 3) + 2m
4 – 3t = -3t + 9
5x + 10 = 5(x + 1) + 5
6y – 9 = 2y

9. Review Questions - 2D
You have gotten a 75, 95, and 100 on your history tests.
What will your test average be if you get an 85 on the next one?
What grade do you need on the next test if you want to have an average of at least 92?
Solve for x:
y = 7x
y = 7x – 2
y = 7(x – 1)
y = 7(x – 1) + 4