Respuesta :

Answer:

[tex]k=-\frac{a}{b}+ \frac{c}{b}[/tex]

Step-by-step explanation:

[tex]\frac{a}{k}+b = \frac{c}{k}\\\frac{a}{k}- \frac{c}{k} = -b\\\frac{1}{k}(a-c)=-b\\a-c=-bk\\k=-\frac{a}{b}+ \frac{c}{b}[/tex]

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