SOLUTION: how do i slove 7-2n=n-14 and 2(4-2r)=-2(r+5)

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Question 228295: how do i slove 7-2n=n-14 and 2(4-2r)=-2(r+5)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

7-2n=n-14 Start with the given equation.


-2n=n-14-7 Subtract 7 from both sides.


-2n-n=-14-7 Subtract n from both sides.


-3n=-14-7 Combine like terms on the left side.


-3n=-21 Combine like terms on the right side.


n=%28-21%29%2F%28-3%29 Divide both sides by -3 to isolate n.


n=7 Reduce.


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Answer:

So the solution is n=7