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7x - 14 = 3x + 6
4x = 20
x = 5
:v De nada -
7(x - 2) = 3( x + 2)
7x - 14 = 3x + 6
7x - 3x = 6 +14
4x = 20
x = 20/4
x = 5
Respuesta.
x = 5