document.write( "Question 168836This question is from textbook Prentice Hall Algebra 2 with Trigonometry
\n" ); document.write( ": Please help me solve this equation: \r
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\n" ); document.write( "\n" ); document.write( "numeric word problem using 3 equations.\r
\n" ); document.write( "\n" ); document.write( "The sum of three number is 105. The third is 11 less than 10 times the second. Twice the first is 7 more than three times the second. Find the Numbers
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Algebra.Com's Answer #124482 by Mathtut(3670)\"\" \"About 
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lets call the numbers a,b,and c\r
\n" ); document.write( "\n" ); document.write( "a+b+c=105....eq 1
\n" ); document.write( "c=10b-11.....eq 2
\n" ); document.write( "2a=3b+7......eq 3
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\n" ); document.write( "lets solve for a in eq 3. a=(3b+7)/2
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\n" ); document.write( "now lets take c's value from eq 2 and a's value from eq 3 and plug them into eq 1
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\n" ); document.write( "((3b+7)/2)+b+(10b-11)=105 multiply all terms by 2
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\n" ); document.write( "3b+7+2b+20b-22=210---> now combine like terms
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\n" ); document.write( "25b=225:
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\n" ); document.write( "\"highlight%28c=10%289%29-11=79%29\"
\n" ); document.write( "\"highlight%28a=%283%289%29%2B7%29%2F2=17%29\"
\n" ); document.write( "a,b,c........17,9,79 respectively\r
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