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2.2-2n=12.2
We simplify the equation to the form, which is simple to understand
2.2-2n=12.2
We move all terms containing n to the left and all other terms to the right.
-2n=+12.2-2.2
We simplify left and right side of the equation.
-2n=+10
We divide both sides of the equation by -2 to get n.
n=-5
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