document.write( "Question 470859: 10% of x is commplement of 40% of 2x find x \n" ); document.write( "
Algebra.Com's Answer #322956 by amoresroy(361)\"\" \"About 
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10% of x is commplement of 40% of 2x find x \r
\n" ); document.write( "\n" ); document.write( "Equation:
\n" ); document.write( "0.1x = 90 - 0.4(2x)
\n" ); document.write( "0.1x = 90 - 0.8x
\n" ); document.write( "0.9x = 90
\n" ); document.write( "x = 100
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