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100

10=x-5

x=15

100

2x+2=12

x=5

100

2/3 x−10=12

x=33

100

6 = −3(x + 2)

x=-4

100

x=1+1

x=2

200

30=15x

x=2

200

5x+20=10

x=-2

200

2/3 x+9=15

x=9

200

−3(4x − 8) = −36

x=5

200

3x-3+3=3

x=1

300

2x=20

x=10

300

5x-5=25

x=6

300

2/3 x+5=15

x=15

300

−3(1 + 6x) = 14 − x

x=-1

300

x=-2x+7

x=7/3

400

x/5=5

x=25

400

-3x+12=-9

x=7

400

4/5 x+3/2 x=12

x=120/23

400

75 = 3(−6x − 5)

x=-5

400

1/2x+10=22

x=24

500

x/12=3

x=36

500

x/5+2=20

x=90

500

5/9 x−10=54

x=576/5

500

12(2x + 11) = 12(2x + 12) 

DOUBLE POINTS IF CORRECT

no solution

500

7(3x+1)=28

x=1