Unit 12 Test Review

Expressions

100

-3x – 9 + 15x

12x-9

200

-9x + 10(6x – 1)

51x-10

300

x + 3(10 + x) – 7x – x

-4x+30

400

-10(1 – 9x) + 6(x – 10)

96x-70

500

-9(6x – 3) + 6(1 + 4x)

-30x+33

1 Step

100

 𝑥 − 3 = −17

-14

200

 8 + 𝑚 = 16

8

300

−9 + 𝑥 = 9

 18

400

-2𝑡 = 24

-12

500

-3+x=-3

0

2 Step

100

 7𝑥 − 1 = 6

1

200

 4𝑥 − 7 = 5

3

300

 36 − 2𝑥 = 24

6

400

 8 + 3𝑥 = 5

-1

500

6-x=-2

8

Multistep

100

 200 − 338 = −6(6𝑥 − 7)

5

200

 5(6 + 3𝑥) + 7 = 127

6

300

 28 − 7𝑥 = −4(−7𝑥 − 7)

0

400

3(𝑥 − 3) − 5𝑥 = −3𝑥 − 6

3

500

 2𝑥− 3x = −x + 7(x − 2)

2

Im up for anything

100

What do we call a letter that represents a number (ex: “x”)

Variable

200

What do we call a number that does not have a letter attached to it

 constant

300

What does it mean to combine like terms?

Add or subtract on the same side of the =

400

What does it mean to do the inverse operation?  Give me an example.

To do the opposite operation.

 Examples :if it’s positive to the negative or if it’s adding subtract ; if it’s multiplying-  divide, etc

500

Who is going to get an A on tomorrow’s test?

I am!