document.write( "Question 226068: 2/3x + 4/5= 9/10 I don't understand it at all...please help! \n" ); document.write( "
Algebra.Com's Answer #168460 by rfer(16322)\"\" \"About 
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2/3x+4/5=9/10
\n" ); document.write( "find common denominator
\n" ); document.write( "20/30x+25/30=27/30
\n" ); document.write( "subtract 25/30
\n" ); document.write( "20/30x=2/30
\n" ); document.write( "divide by 20/30
\n" ); document.write( "to do that we invert and multiply
\n" ); document.write( "x=(2/30)/(20/30)
\n" ); document.write( "x=(2/30)(30/20)
\n" ); document.write( "x=60/600
\n" ); document.write( "reduce fraction
\n" ); document.write( "x=1/10
\n" ); document.write( "
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