-207=-9n+9(-10n+10)

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Solution for -207=-9n+9(-10n+10) equation:


-207=-9n+9(-10n+10)

We simplify the equation to the form, which is simple to understand 
-207=-9n+9(-10n+10)

Reorder the terms in parentheses
-207=-9n+(-90n+90)

Remove unnecessary parentheses
-207=-9n-90n+90

We move all terms containing n to the left and all other terms to the right. 
+9n+90n=+90+207

We simplify left and right side of the equation. 
+99n=+297

We divide both sides of the equation by 99 to get n. 
n=3

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