document.write( "Question 177413: I need help setting up an equation to solve this problem. Using a calender, I quickly determined the answer was Saturday, however, I am having problems writing an equation to solve this problem. \r
\n" ); document.write( "\n" ); document.write( "What day would yesterday be if Friday was four days before the day after tommorrow?
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Algebra.Com's Answer #132442 by Mathtut(3670)\"\" \"About 
You can put this solution on YOUR website!
let x be the unknown day of the week
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\n" ); document.write( "if x+2-4=friday--->x-2=friday
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\n" ); document.write( "we are looking for x-1
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\n" ); document.write( "if you add 1 to both sides of the equation you get
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\n" ); document.write( "x-2+1=friday +1
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\n" ); document.write( "x-1=friday+1
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\n" ); document.write( "x-1=Saturday
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\n" ); document.write( "I dont know how complicated you want this formula but maybe this will help
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