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251=-8n-7(7+6n)
We simplify the equation to the form, which is simple to understand
251=-8n-7(7+6n)
Reorder the terms in parentheses
251=-8n+(-49-42n)
Remove unnecessary parentheses
+251=-8n-49-42n
We move all terms containing n to the left and all other terms to the right.
+8n+42n=-49-251
We simplify left and right side of the equation.
+50n=-300
We divide both sides of the equation by 50 to get n.
n=-6
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