Question

2x-4=4x+8

x-x+9=4x-6

2 x-2x+9=20

2x-6x+9=0

Answer 1

1º $2X -4 = 4X +8$
$2X -4X = 4 +8$
$-2X = 12$
$X = \frac{-12}{2}$
[tex]X = -6
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Ahí hay una.