Resposta:

a) 17x - 2 + 4 = 10 + 5x

17x - 5x = 10 + 2 - 4

12x = 8

x = 8/12

x = 2/3

b) x - 4/2 = 2x + 3/2

(x - 4) . 2 = (2x + 3) . 2

2x - 8 = 4x + 6

-8 + 6 = 4x - 2x

-2 = 2x

2x = -2

x = -2/2

x = -1

c) 8x = 2x + 12

8x - 2x = 12

6x = 12

x = 12/6

x = 2

d) 5x - 35 = 0

5x = 35

x = 35/5

x = 7

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