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Anonymous
In 3n-1 equals 11, n is 4.
3n - 1 = 11
3n - 1 + 1 = 11 + 1
3n = 12
3n/3 = 12/3
n = 4
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Sodium (Na)
-7
12n + 8 = 11 12n = 3 n = 1/4
It's a first-degree equation in one unknown.The unknown is 'n', and its value can be found like this:11n = 1Divide each side by 11:n = 1/11
n=3,y=4 2(n+3y)=30