Respuesta: 50
Explicación paso a paso:
2x + 20 + x + 10 = 180
3x = 180 - 30
3x = 150
x = 150
3x = 150 ÷ 3
x = 50
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Respuesta: 50
Explicación paso a paso:
2x + 20 + x + 10 = 180
3x = 180 - 30
3x = 150
x = 150
3x = 180 - 30
3x = 150 ÷ 3
x = 50