Expression and Equations Part 1

Parts of an Expression

100

Name the coefficients in the expression:

3x + 4 - 17 - 8y

3 and -8

200

Name the constants in the expression:

3x + 4 - 17 - 8y

4 and -17

300

Name the terms of the expression:

3x + 4 - 17 - 8y

3x, 4, -17, -8y

400

Name the variables in the expression:

3x + 4 - 17 - 8y

x and y 

500

What is the difference between an expression and an equation?

An equation has an equal sign and an expression does not! 

Distributive Property

100

7 (1- 8n) 

7 - 56n 

200

8 ( b + 3)

8b + 24

300

6 (3n - 4) 

18n - 24

400

4 ( 5p + 7)

20p + 28

500

8 (2m - 14)

16m - 112

One Step Equations

100

x - 17 = 39 

x= 56

200

34 + y = 50

y = 16

300

m/ 20 = 3

m = 60

400

3x= 99

x= 33

500

r - (-19) = 50 

r = 31

Distributing a Negative

100

-6 ( 2x + 4)

-12x - 24

200

-3 (5t - 2)

-15t + 6

300

7 (-3w + 10)

-21w + 70

400

-6 (9 - 9v)

-54 + 54v

500

- (3x - 9) 

-3x + 9

Combining Like Terms

100

9m + 8 + 33m 

42m + 8

200

82r + 33 - 18 + 6r

88r + 15

300

-9n + 5 + 4n - 2

-5n + 3

400

6x + 7 - 8x - 10

-2x - 3

500

-18r - 9 - 4r - 10

-22r - 19