document.write( "Question 1044277: the mean of x and 4x is 10, x = ? \n" ); document.write( "
Algebra.Com's Answer #659555 by richard1234(7193)\"\" \"About 
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(x + 4x)/2 = 10\r
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\n" ); document.write( "\n" ); document.write( "5x/2 = 10\r
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\n" ); document.write( "\n" ); document.write( "5x = 20\r
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\n" ); document.write( "\n" ); document.write( "x = 4
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