Respuesta :

mahamahmood95

Step-by-step explanation:

the equation will be

-4(7+n)=3n

let's solve the equation

-28-4n=3n

add 4n to the both sides

the equation becomes

-28-4n+4n=3n+4n

-28=7n

divide both sides by 7

-4=n

or

n=-4

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