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100

 n + 2 = 8 

n = 6

100

12 = x - 5

x = 17

100

66 = 6y

y = 11

100

z/6 =12

z = 72

100

-4x = 16

x = -4


200

 v + -3 = 11

v = 14

200

48 - x = 29

x = 19

200

6x = 30.6

x = 5.1

200

6 = s ÷ 4/5

s = 4 4/5

200

x - 3.5 = 12

x = 15.5

300

f - 312 = -101

f = 211

300

x - 40 = -34

x = 6

300

18x = -108

x = -6

300

y ÷ 42 = -3

y = -126


300

-x = -50

x = 50

400

56.67 + x = 100

x = 43.33

400

x - 6.4 = -2.83

x = 3.57

400

-36 = -4x

x = 9

400

3.6 = a/2.25

a = 8.1

400

(1/2)x = 17 1/5

x = 34 2/5

500

1/3 - x = -7/12

x = -1/4

500

x - 5 3/4 = 7 5/6

x = 16 7/12

500

1/12x = 13

x = 156

500

r/-72 = -4.36

r = 313.92

500

1/4x + 2 = 26

x = 96

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