Respuesta:
c)4
Explicación paso a paso:
4x - (3x + 9) = (x + 2) - (2x - 1)
4x - 3x - 9 = x - 2 - 2x + 1
x - 9 = -x - 2+1
x - 9 = - x - 1
x - 9 + x = - 1
x + x = - 1 +9
2x = - 1 + 9
2x = 8
x = 4
Espero ter ayudado
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Respuesta:
c)4
Explicación paso a paso:
4x - (3x + 9) = (x + 2) - (2x - 1)
4x - 3x - 9 = x - 2 - 2x + 1
x - 9 = -x - 2+1
x - 9 = - x - 1
x - 9 + x = - 1
x + x = - 1 +9
2x = - 1 + 9
2x = 8
x = 4
Espero ter ayudado