Respuesta:
5
Explicación paso a paso:
5+2x=15
2x+5=15
2x+5=5=15-5
2x=10
2x/2= 10/2
10/2 10x1/2
R//= 5
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Respuesta:
5
Explicación paso a paso:
5+2x=15
2x+5=15
2x+5=5=15-5
2x=10
2x/2= 10/2
10/2 10x1/2
R//= 5