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4(n+7)=n/2+21
We move all terms to the left:
4(n+7)-(n/2+21)=0
We multiply parentheses
4n-(n/2+21)+28=0
We get rid of parentheses
4n-n/2-21+28=0
We multiply all the terms by the denominator
4n*2-n-21*2+28*2=0
We add all the numbers together, and all the variables
-1n+4n*2+14=0
Wy multiply elements
-1n+8n+14=0
We add all the numbers together, and all the variables
7n+14=0
We move all terms containing n to the left, all other terms to the right
7n=-14
n=-14/7
n=-2
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