document.write( "Question 990414: the sum of three numbers is 79 . the second number is 5 times the first , while the third is 15 more than the first . find the numbers \n" ); document.write( "
Algebra.Com's Answer #610417 by macston(5194)\"\" \"About 
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\n" ); document.write( "F=first number; S=second number=5F; T=third number=F+15
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\n" ); document.write( "F+S+T=79
\n" ); document.write( "F+(5F)+(F+15)=79
\n" ); document.write( "7F+15=79
\n" ); document.write( "7F=64
\n" ); document.write( "F=64/7
\n" ); document.write( "S=5(F)=5(64/7)=320/7
\n" ); document.write( "T=F+15=64/7+105/7=169/7
\n" ); document.write( ".
\n" ); document.write( "ANSWER: The numbers are 64/7, 320/7, and 169/7.
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\n" ); document.write( "CHECK:
\n" ); document.write( "(64/7)+(320/7)+(169/7)=79
\n" ); document.write( "553/7=79
\n" ); document.write( "79=79
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