Math Review: Expressions!

Like Terms

100

How many terms?

4x + 7

Two

200

How many LIKE TERMS?

4x + 7 -10x

Two

300

Simplify

4x - 10x + x

-5x

400

Simplify 

4x + 7 - 10x + x - 2

-5x + 5

500

Simplify

7b + 2a - 3 - 5b +1 + 9a

2b +11a - 2

Negative Numbers

100

5-2

3

200

2-5

-3

300

-5 -2

-7

400

5 - (-2)

7

500

-5 - (-2)

-3

Distributive Property

100

2(x + 2)

2x + 4

200

3(x - 1)

3x - 3

300

-1(x + 5)

-x - 5

400

-4(x - 3)

-4x + 12

500

-2(-2x - 3)

4x + 6

Fractions

100

1/2 = x/10

x = 5

200

1/2 + 3/10 =

8/10 = 4/5

300

1/2 - 3/10 =

2/10 = 1/5

400

1/2 x 3/10 =

3/20

500

1/2 divided by 3/10

= 1/2 x 10/3

=10/6 = 5/3 = 1 2/3

1-Step Equations

100

x + 2 = 102

x = 100

200

x - 5 = 15

x = 20

300

6 - x = 18

x = -12

400

11x = 44

x = 4

500

x/3 = 7

x = 21