diegomorales diegomorales

16-11-2016
Mathematics

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steps in order to correctly solve
6n = 30 + 3(n – 4) for n.

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fangqitu fangqitu

16-11-2016

6n=30+3n-12
6n-3n=30-12
3n=18
n=6

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16-11-2016

6n=30+3(n-4)
multiply 3 by n and 3 by -4
6n= 30+ (3n-(3*4))
6n=30+3n-12
subtract 3n from both sides.
6n=30+3n-12
-3n -3n
3n= 30-12
3n= 18
and then you divide by 3
n= 6

Answer Link

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