Respuesta:
la 7 sale 30
Explicación paso a paso:
70 + 30 + X + 20 +X =180
2X + 120= 180
2X=60
X=30
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Verified answer
Respuesta:
la 7 sale 30
Explicación paso a paso:
70 + 30 + X + 20 +X =180
2X + 120= 180
2X=60
X=30