document.write( "Question 1068799: ann's age is seven-tenths of bill's age. in 4 years, ann's age will be eight-elevenths of bill's age. how old is bill? please show how to correctly form and solve the equation \n" ); document.write( "
Algebra.Com's Answer #684041 by josgarithmetic(39618)\"\" \"About 
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x, Ann
\n" ); document.write( "y, Bill\r
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\n" ); document.write( "\n" ); document.write( "\"system%28x=%287%2F10%29y%2Cx%2B4=%288%2F11%29%28y%2B4%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%287%2F10%29y%2B4=%288%2F11%29%28y%2B4%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"77y%2B440=80y%2B320\"\r
\n" ); document.write( "\n" ); document.write( "\"440-320=80y-77y\"\r
\n" ); document.write( "\n" ); document.write( "\"120=3y\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28y=40%29\", Bill's age
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