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5 - x + 3 = 4 x - 3 x + 8

- x - 4 x + 3 x = 8 - 5 - 3

- 2 x = 0

x = 0

2 + x - 5 - 2 x - 7 = 3 x + 7

x - 2 x - 3 x = 7 - 2 + 5 + 7

- 4 x = 3

x = - 3 /4

4 x + 3 - x - 1 + 5 = 5 x + 7

4 x - x - 5 x = 7 - 3 + 1 - 5

- 2 x =  0

x = 0

2 x + 1 - 2 - x - 7 = 3 x + 7

2 x - x - 3 x = 7 - 1 + 7  + 2

-  x =  15

x = - 15

5 x - 5 + 6 - 3 x = 0

2 x = 5 - 6

2 x = - 1

x = - 1 /2

7 x + 28 - 3 x - 6 = x + 7

7 x  - 3 x - x = 7 - 28 + 6

3 x = - 13

x = - 13/ 3

2 x - 2 - 3 x - 3 = 4 x - 8

2 x - 3 x - 4 x = - 8 + 2 + 3

- 5 x = - 3

x = 3 /5