.5(1+7.5n)=20.5

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Solution for .5(1+7.5n)=20.5 equation: 



.5(1+7.5n)=20.5

We move all terms to the left:

.5(1+7.5n)-(20.5)=0

We add all the numbers together, and all the variables

.5(7.5n+1)-(20.5)=0

We add all the numbers together, and all the variables

.5(7.5n+1)-20.5=0

We multiply parentheses

3.5n+0.5-20.5=0

We add all the numbers together, and all the variables

3.5n-20=0

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

3.5n=20

n=20/3.5

n=5+2.5/3.5

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