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0.9(3n-25)=9-0.45n
We simplify the equation to the form, which is simple to understand
0.9(3n-25)=9-0.45n
Reorder the terms in parentheses
+(+2.7n-22.5)=9-0.45n
Remove unnecessary parentheses
+2.7n-22.5=+9-0.45n
We move all terms containing n to the left and all other terms to the right.
+2.7n + 0.45n=+9+22.5
We simplify left and right side of the equation.
+3.15n=+31.5
We divide both sides of the equation by 3.15 to get n.
n=10
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