Respuesta :

Answer:

x = -10

x = 7

Step-by-step explanation:

a)

2(x+3) = x - 4

2x + 6 = x -4

x + 6 = -4

x = -10

b)

4(5x-2) = 2(9x+3)

20x-8 = 18x + 6

2x-8 = 6

2x = 14

x = 7

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