7 chap. 2 review

addition equations

100

12 = x + (-2)

x = 14

200

-13 + x = 18

x = 31

300

x + 68 = -23

x = -91

400

0 = x + |-14|

x = -14

500

-1 = x + 3²

x = -10

subtraction equations

100

x - (-8) = 34

x = 26

200

0 = x - 78

x = 78

300

-14 = x - 6

x = -8

400

x - |-32| = 5

x = 37

500

4 = x - (-5²)

x = -21

multiplication equations

100

9x = 27

x = 3

200

4x = 124

x = 31

300

-3x = 42

x = -14

400

0 = 10x

x = 0

500

168 = -56x

x = -3

division equations

100

x/12 = 3

x = 36

200

0 = x/8

x = 0

300

7 = x ÷ 18

x = 126

400

|-6| = x/-25

x = -150

500

-|-1| = x/15

-15

two steps

100

2x + 14 = 34

x = 10

200

-7x - 12 = 16

x = -4

300

x/3 + 9 = 12

x = 9

400

x/6 - |-5| = 11

x = 96

500

x/7 - (-5) = |-17|

x = 84