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2n-(5n-7)=0
We get rid of parentheses
2n-5n+7=0
We add all the numbers together, and all the variables
-3n+7=0
We move all terms containing n to the left, all other terms to the right
-3n=-7
n=-7/-3
n=2+1/3
| 3+2(3x-2)=59 | | 6/x*3=9 | | 6/x*3=1 | | x-(-4/3)=6 | | 10k+2+20k-60=20 | | 7+6=(1+4e) | | n/5+5=21 | | 6/x(3)=1 | | 4x=2=10 | | x-9/4=7(4) | | x-9/4=7x4 | | 5p=3p-4 | | x=9/4=7 |