Saludos
3x + 5 = 2 - 4(1 - 2X)
3x + 5 = 2 - 4 + 8x
5 + -2 + 4 = 8x - 3x
7 = 5x
7/5 = x
R/ A. Positivo
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Saludos
3x + 5 = 2 - 4(1 - 2X)
3x + 5 = 2 - 4 + 8x
5 + -2 + 4 = 8x - 3x
7 = 5x
7/5 = x
R/ A. Positivo
3x+5=2-4+8x
3x-8x=2-4-5
-5x=-7
x=-7/-5
x=1.4
por lo tanto seria positivo