SOLUTION: I have a total sales number that includes tax of 7.75%. The number is $3,618,214.77. How do I determine the amount of tax the is included in the number? .0775x=$3,618,214.77-x

Algebra ->  Expressions-with-variables -> SOLUTION: I have a total sales number that includes tax of 7.75%. The number is $3,618,214.77. How do I determine the amount of tax the is included in the number? .0775x=$3,618,214.77-x      Log On


   

Question 417477: I have a total sales number that includes tax of 7.75%. The number is $3,618,214.77. How do I determine the amount of tax the is included in the number?
.0775x=$3,618,214.77-x ?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = the amount EXcluding tax
x+%2B+.0775x+=+3618214.77
1.0775x+=+3618214.77
x+=+3357971.94
(amount including tax) - (amount excluding tax) = tax
---------------
3618214.77+-+3357971.94+=+260242.83
The tax is $260,242.83