Unit A Review

One and Two-Step Equations

100

w + 3 = 10

w = 7

200

-8y = 96

y = -12

300

-2w + 8 = -22

w = 15

400

-2t + 9 = -15

t = 12

500

2(3x - 2) = 14

x = 3

Order of Operations

100

12 - 7 - 3

2

200

9 + 7 x 8

65

300

-4 * 2 + 7 * 6

34

400

16/2 - 77/11

1

500

2 * 4^2 - (21/7 - 3) - 3 * 4

20

Signed Numbers

100

3 - - 8

11

200

-5 + -8

-13

300

7(-6)

-42

400

-9(-8)

72

500

4 - (-2) + 3(-6) + -42/-7

-6

Parenthesis

100

3(x + 4) = 2x - 5

x = -17

200

7(3x + 3) = 25x - 11

x = 8

300

3(4y - 5) = 11(y - 4)

y = -29

400

5(y - 3) = -2(4y - 4) + 3

y = 2

500

6(2x + 7) - 12 = 3(3x - 5) + 6

x = -13 

Variables on Both Sides

100

6w = 5w + 16

w = 16

200

2x - 12 = 3x - 10

x = -2

300

7y + 4 = 4y + 13

y = 3

400

3x - 18 = -4x + 17

x = 5

500

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

x = -2