document.write( "Question 788942: when one-third of a number is added to one-fourth of the number, the sum is 21. what is the number? \n" ); document.write( "
Algebra.Com's Answer #478680 by stanbon(75887)\"\" \"About 
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when one-third of a number is added to one-fourth of the number, the sum is 21. what is the number?
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\n" ); document.write( "Let the number be \"x\":
\n" ); document.write( "(1/3 + 1/4)x = 21
\n" ); document.write( "[(4+3)/12]x = 21
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\n" ); document.write( "(7/12)x = 21
\n" ); document.write( "x = 12*21/7
\n" ); document.write( "x = 36
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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