-6-9(1+2.5n)=18.5

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Solution for -6-9(1+2.5n)=18.5 equation: 



-6-9(1+2.5n)=18.5

We move all terms to the left:

-6-9(1+2.5n)-(18.5)=0

We add all the numbers together, and all the variables

-9(2.5n+1)-6-(18.5)=0

We add all the numbers together, and all the variables

-9(2.5n+1)-24.5=0

We multiply parentheses

-18n-9-24.5=0

We add all the numbers together, and all the variables

-18n-33.5=0

We move all terms containing n to the left, all other terms to the right

-18n=33.5

n=33.5/-18

n=-1+4.42857142857/5.14285714286

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