Respuesta:
45
Explicación paso a paso:
120 + 2x = 210
2x = 210 - 120
2x = 90
x = 90/2
x = 45 (cada polo)
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Respuesta:
45
Explicación paso a paso:
120 + 2x = 210
2x = 210 - 120
2x = 90
x = 90/2
x = 45 (cada polo)