9/17 Review

Negative Vibes Only

100

- 7 - 10

-17

200

-12 + 18

6

300

(-6)(-8)

48

400

6 - 17 + 2

-9

500

-13 + 20 - 6 + 19

20

X marks the spot

100

x + 7 = 15

x = 8

200

3x = 24

x = 8

300

2x + 5 = 17

x = 6

400

4(x - 3) = 28

x = 10

500

3x + 8 = 2x + 19

x = 11

X Games Mode

100

5x - 7 = 28

x = 7

200

3(x + 4) - 5 = 22

x = 5

300

4(2x - 3) = 3x + 17

x = 29/5 OR 5.8 OR 5 4/5

400

7x - 2(3x + 5) = 4x - 20

x = 10/3 OR 3 1/3 OR 3.3333333

500

5(2x - 3) + 7 = 3(3x + 4) - 2x

x = 20/3 OR 6 2/3 OR 6.6666667

Order in the court

100

6 + 2 x 5

16

200

18/3(2+1)

18

300

8 - 2² x 3

-4

400

12/2(3+3)

36

500

6/2(1+2) x 3

27

Lost in Translation

100

Evaluate 3x + 5 when x = 4

17

200

Evaluate 2a² - 7 when a = 3

11

300

Translate: "Seven more than twice a number"

2x + 7

400

Translate: "Five less than three times a number"

3x - 5

500

Write and evaluate an expression for: "The product of 4 and a number, decreased by 9," when the number is 6. 

4x - 9, 15