Explicación paso a paso:
[tex]2o + o + 120 + 2 \alpha + \alpha = 180[/tex]
[tex]3o + 3 \alpha = 60[/tex]
[tex]o + \alpha = 20[/tex]
....(1)
[tex]o + \alpha + x = 180[/tex]
[tex]20 + x = 180[/tex]
[tex]x = 160[/tex]
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Explicación paso a paso:
[tex]2o + o + 120 + 2 \alpha + \alpha = 180[/tex]
[tex]3o + 3 \alpha = 60[/tex]
[tex]o + \alpha = 20[/tex]
....(1)
[tex]o + \alpha + x = 180[/tex]
[tex]20 + x = 180[/tex]
[tex]x = 160[/tex]