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6n = 30 + 3(n – 4) for n.

Respuesta :

natergater
6n = 30 + 3(n - 4)
6n = 30 + 3n - 12
6n = 3n + 18
-3n 
3n = 18
/3       /3
n= 6
6n = 30 + 3(n - 4) 
6n = 30 + 3n - 12 because you simplified the parenthesis
then subtract  12 form 30 to simplify equation 
6n = 18 + 3n 
then subtract 3n from both sides
6n - 3n = 18 + 3n -3n 
3n = 18
than simplify the equation: divide both sides by 3
n = 6 

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