Respuesta:
Explicación paso a paso:
x + 2x + 5 = 105 + x
3x + 5 = 105 + x
3x - x = 105 - 5
2x = 100
x = 50
Comprobación:
50 + 2(50) + 5 = 105 + 50
50 + 100 + 5 = 155
155 = 155
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Respuesta:
Explicación paso a paso:
x + 2x + 5 = 105 + x
3x + 5 = 105 + x
3x - x = 105 - 5
2x = 100
x = 50
Comprobación:
x + 2x + 5 = 105 + x
50 + 2(50) + 5 = 105 + 50
50 + 100 + 5 = 155
155 = 155