SOLUTION: 4 (5n-7)=10n+2. need help to learn how to solve these kind of problems

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Question 902049: 4 (5n-7)=10n+2. need help to learn how to solve these kind of problems
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Knowns on the right, unknowns on the left.
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4%285n-7%29=10n%2B2 Distribute the 4 on the left hand side.
20n-28=10n%2B2 Subtract 10n from both sides.
10n-28=2 Add 28%7D%7D+to+both+sides.%0D%0A%7B%7B%7B10n=30 Divide both side by 10.
n=3 Final answer.