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Level 1

100

3b - 5 - 2b = 5

b=10

200

5n + 4 - 8n = -5

n=3

300

m/-2 + 7 = 21

m=-28

400

3 (x -4) = 15

x=9

500

3(s-10) = 35

s=65/3

Level 2

100

4(y-2) + y= -13

y=-1

200

5(t+2) = 25 + 2t

t=5

300

5(k-4) = 4- 3k

k=3

400

6d + 1 = 15 - d

d=2

500

7 + 3h = -1 -5h

h=-1

Level 3

100

2(2x-1)-3(1-x)=16

x=3

200

0(2x+1)=3(x-4)

x=4

300

3(x+1)=2(x+7)

x=11

400

2(x-3)+5x=12+8x

x=-18

500

2(x+3)+7=25-2(x-2)

x=4