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livvyxo
livvyxo livvyxo
  • 03-05-2016
  • Mathematics
Answered

Can someone please solve 10n - 3 = 7n + 21

Verified Answer :

Willchemistry
Willchemistry Willchemistry
  • 03-05-2016

\(10 n-3 = 7n+21\)

Add 3 to both sides :

\(10n-3+3=7n+21+3\)

\(10n=7n+24\)

Subtract  7 n from both sides:

\(10n-7n=7n+24-7n\)

\(3n=24\)

Divide both sides by 3 :

\(\frac{3n}{3} = \frac{24}{3}\)

\(n = 8\)

hope this helps!

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