Respuesta:
55
Explicación paso a paso:
×+10+60+×=180
2×+70=180
2×=180-70
2×=110
×=55
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Verified answer
Respuesta:
55
Explicación paso a paso:
×+10+60+×=180
2×+70=180
2×=180-70
2×=110
×=55