document.write( "Question 1015938: from the following two equations:\r
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\n" ); document.write( "\n" ); document.write( "3a-2b=11
\n" ); document.write( "5a+7b=39\r
\n" ); document.write( "\n" ); document.write( "find a and b
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Algebra.Com's Answer #632320 by FrankM(1040)\"\" \"About 
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3a-2b=11
\n" ); document.write( "5a+7b=39\r
\n" ); document.write( "\n" ); document.write( "multiply 1st equation by 5 and second by 3.\r
\n" ); document.write( "\n" ); document.write( "15a-10b=55
\n" ); document.write( "15a+21b=117\r
\n" ); document.write( "\n" ); document.write( "flip signs on first equation and add - \r
\n" ); document.write( "\n" ); document.write( "-15a+10b=-55
\n" ); document.write( "15a+21b=117
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\n" ); document.write( "\n" ); document.write( "31B = 62\r
\n" ); document.write( "\n" ); document.write( "B=2\r
\n" ); document.write( "\n" ); document.write( "3A-2(2)=11\r
\n" ); document.write( "\n" ); document.write( "3A-4=11\r
\n" ); document.write( "\n" ); document.write( "3A=15\r
\n" ); document.write( "\n" ); document.write( "A=5
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