Respuesta:
2x-1=11
2x=1+11
2x=12÷2
X=6
comprobacion
6(2)-1=11
12-1=11
11=11
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Respuesta:
2x-1=11
2x=1+11
2x=12÷2
X=6
comprobacion
6(2)-1=11
12-1=11
11=11