document.write( "Question 657828: (12+x)/(7-x)=a/b
\n" ); document.write( "Solve for x in terms of a and b. Help?
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Algebra.Com's Answer #410021 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "\"%2812%2Bx%29%2F%287-x%29=a%2Fb\".......cross multiply\r
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\n" ); document.write( "\n" ); document.write( "\"%2812%2Bx%29%2Ab=a%287-x%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"b=a%287-x%29%2F%2812%2Bx%29\"\r
\n" ); document.write( "\n" ); document.write( "and\r
\n" ); document.write( "\n" ); document.write( "\"a%287-x%29=%2812%2Bx%29%2Ab\"\r
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\n" ); document.write( "\n" ); document.write( "\"a=%2812%2Bx%29%2Ab%2F%287-x%29\"
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