daysyperez2003 daysyperez2003

10-07-2020
Mathematics

contestada

Solve the system of equations by substitution.
2m - 7n = -18.5
m = 10 - 2n

Respuesta :

AdrianaNH AdrianaNH

10-07-2020

you can just substitute the m in the first equation
like this ; 2(10 - 2n) - 7n = -18.5

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