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2n+7n-28=26
We simplify the equation to the form, which is simple to understand
2n+7n-28=26
We move all terms containing n to the left and all other terms to the right.
+2n+7n=+26+28
We simplify left and right side of the equation.
+9n=+54
We divide both sides of the equation by 9 to get n.
n=6
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