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100

3 y + 3 =9

y = 2

100

6 - x = 9

x = - 3

100

4(2x+3)=28

x=2

100

4 x + 6 - 7 x + 9 = 18

x = -1

200

2 m + 2 = 10

m = 4

200

3 ( x - 2 ) = 6

x = 4

200

- 2(x + 3) = x + 6

x= -4

200

5x - 11 = 3x + 9

x=10

300

4 ( 6 + 2 x ) = 0

x = - 3

300

 3x - 12 = 0

x=4

300

2(x – 9) = 4 · 9

x= 27

300

 9 - 2(x - 5) = x + 10

x=3

400

4(6+2x)=0

x= -3

400

   1/3 (21-3x) = 1/2 (8-4x)



x=-3

400

4(x + 1) + 7x = 4

x=0

400

4x−7(2−x)=3x+2

x=2

500

4 + 3 ( x + 2 ) = 10

x= 0

500

  5(2x - 1) = 4(3x - 2)

x=3/2

500

2(4x−5)=−3(2x+1)

x=1/2

500

(x - 3)/4 + (x - 1)/5 - (x - 2)/3 = 1

x=11