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3x/4 = 5

3x = 5 * 4

x = 20/3


4x - 3 = 11

4x = 11 + 3

x = 14/4

x = (2 * 7)/(2 * 2)

x = 7/2


7 - 8x = 56

8x = 7 - 56

8x = -49

x = -49/8


6x - 4 = 3x + 14

6x - 3x = 14 + 4

3x = 18

x = 18/3


9 - 2x = 11 + 4x

9 - 11 = 4x + 2x

-2 = 6x

x = -2/6

x = -2/(2 * 3)

x = -1/3

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