Respuesta:
20
Explicación paso a paso:
80 + 60 + 2x = 180
140 + 2x = 180
2x = 180 - 140
2x = 40
x = 40 / 2
x = 20
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Verified answer
Respuesta:
20
Explicación paso a paso:
80 + 60 + 2x = 180
140 + 2x = 180
2x = 180 - 140
2x = 40
x = 40 / 2
x = 20