13x-7=7x+11=18 tengo que encontrar el valor de las 2 "x" y debe de ser el mismo número
Respuestas a la pregunta
Respuesta:
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Explicación paso a paso:
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Respuesta:
13x-7=18
7x+11=18
13x=25
x=25/13
7x+11=18
7x=7
x=7/7
x=1
no se si habrá un tercer numero pero espero que te ayude