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17-09-2019
Mathematics

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SoIve the equation a = m - n for the variable n.
A. n = a + m
B. n = m-a
C. n = a - m
D. n=-m-a

Respuesta :

17-09-2019

Answer:

B. n = m - a

Step-by-step explanation:

[tex]a=m-n\qquad\text{subtract}\ a\ \text{from both sides}\\\\a-a=m-n-a\\\\0=m-n-a\qquad\text{add}\ n\ \text{to both sides}\\\\0+n=m-n+n-a\\\\n=m-a[/tex]

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