Respuesta:
x = 20
Explicación paso a paso:
Resolución:
2x + 90 + 50 = 180
2x = 180 - 140
2x = 40
x = 40/2
:(
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Respuesta:
x = 20
Explicación paso a paso:
Resolución:
2x + 90 + 50 = 180
2x = 180 - 140
2x = 40
x = 40/2
x = 20
:(