Respuesta:
corona :)
Explicación paso a paso:
10-3(d-1)=d+1
10-3d +3=d+1
10+3-1=d+3d
12=4d
12/4=d
3=d
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Respuesta:
corona :)
Explicación paso a paso:
10-3(d-1)=d+1
10-3d +3=d+1
10+3-1=d+3d
12=4d
12/4=d
3=d