Respuesta:
[tex]4x - 27 = 45 \\ 4x = 45 + 27 \\ 4x = 72 \\ x = \frac{72}{4} = 18 \\ x = 18 \\ 4 \times 18 - 27 = 72 - 27 = 45[/tex]
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Respuesta:
[tex]4x - 27 = 45 \\ 4x = 45 + 27 \\ 4x = 72 \\ x = \frac{72}{4} = 18 \\ x = 18 \\ 4 \times 18 - 27 = 72 - 27 = 45[/tex]