Algebraic Equations

Vocabulary

100

A letter used to represent an unknown number

What is a variable?

200

Which property tells us to multiply the number inside the parentheses by each term inside the parentheses?

What is the Distributive Property?

300

What do we call the inverse of a fraction? Hint: When we flip a fraction. 

What is the reciprocal?

400

The side of a square is measured as 5x.  How would you represent the perimeter of the square?

What is 4(5x) or 20x or 5x+5x+5x+5x?

500

What is the goal when solving equations?

To isolate the variable

Distributive Property

100

5(p - 5) = 20

What is 9?

200

2(x + 6) = 30

What is 9 ?

300

3(10m) = 90

What is 3?

400

-7( 6 + d) = 49

What is -13?

500

-2(x + 5) + 6x - 8 = 26

What is 11?

Combining Like Terms

100

5k + 2k + k + 2 = 42

What is 5 ?

200

4m + 3m + m = 40

What is 5?

300

3k - k - 1 = 23

What is 12?

400

2v - 12 + 16 = 24

What is 10 ?

500

8x – 6x – 7 + 9 = 64

What is  31?

2-Step

100

4y + 6 = 14

What is 2 ?

200

z/6 - 8 = 2

What is 60?

300

v – 9.5 = 13.6

What is 23.1?

400

18 = 9c + 9

What is 1?

500

-20-b/4= -15

What is -20?

Rational Coefficient

100

n/8 = 18      

What is 144?

200

 

1/9 x + 6 = 8

What is 18 ?

300

0.2(x – 0.4) = 0.8

What is 4.4?

400

½ (2n + 10)  = 47

What is 42?

500

1⁄4 (12m + 20) = 80

What is 25?