document.write( "Question 906990: I have to buy something: x, then take off a 10% discount, then add 20% sales tax to equal y. All I need is how to write the equation \n" ); document.write( "
Algebra.Com's Answer #550266 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"%28x-%2810%2F100%29x%29%2A%281%2B20%2F100%29=%28x-0.1x%29%281.2%29=%280.9x%29%281.2%29=1.08x\"
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