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4(5x-3)-7x=3(6x-4)+10
20x - 12 - 7x = 18x - 12 + 10
20x - 7x - 12 = 18x - 12 + 10
13x - 12 = 18x - 2
13x - 18x = - 2 + 12
- 5x = 10
x = 10/-5
x = - 2
Respuesta
x = - 2