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1+7n=4(n-5)
We simplify the equation to the form, which is simple to understand
1+7n=4(n-5)
Reorder the terms in parentheses
1+7n=+(+4n-20)
Remove unnecessary parentheses
+1+7n=+4n-20
We move all terms containing n to the left and all other terms to the right.
+7n-4n=-20-1
We simplify left and right side of the equation.
+3n=-21
We divide both sides of the equation by 3 to get n.
n=-7
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