Respuesta:
5
Explicación paso a paso:
5 ( x - 1 ) + 2x = 30
5x - 5 + 2x = 30
5x + 2x = 30 + 5
7x = 35
x = 35 / 7
x = 5
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Respuesta:
5
Explicación paso a paso:
5 ( x - 1 ) + 2x = 30
5x - 5 + 2x = 30
5x + 2x = 30 + 5
7x = 35
x = 35 / 7
x = 5