.4(5n-9)-12.8=4.6

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Solution for .4(5n-9)-12.8=4.6 equation:


.4(5n-9)-12.8=4.6

We simplify the equation to the form, which is simple to understand 
.4(5n-9)-12.8=4.6

Reorder the terms in parentheses
+(+2n-3.6)-12.8=4.6

Remove unnecessary parentheses
+2n-3.6-12.8=+4.6

We move all terms containing n to the left and all other terms to the right. 
+2n=+4.6+3.6+12.8

We simplify left and right side of the equation. 
+2n=+21

We divide both sides of the equation by 2 to get n. 
n=10.5

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