Respuesta :

unicorn3125

Answer:

           [tex]\bold{m\ =\ \dfrac{21}{16}}[/tex]

Step-by-step explanation:

[tex]\bold{\dfrac{3m}4-\dfrac m{12}\ =\ \dfrac78}\\\\{}\qquad\cdot12\qquad\ \cdot12\\\\\bold{9m-m\ =\ \dfrac{21}2}\\\\{}\quad \ \bold{8m\ =\ \dfrac{21}2}\\\\{}\quad\div8\qquad\div8\\\\\bold{m\ =\ \dfrac{21}{16}}[/tex]

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