document.write( "Question 626740: Given 3x + y = 17 and x + 3y = -1. Find the value of 3x + 3y \n" ); document.write( "
Algebra.Com's Answer #394400 by jim_thompson5910(35256)\"\" \"About 
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3x + y = 17
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\n" ); document.write( "4x+4y = 16\r
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\n" ); document.write( "\n" ); document.write( "4x+4y = 16\r
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\n" ); document.write( "\n" ); document.write( "4(x+y) = 16\r
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\n" ); document.write( "\n" ); document.write( "x+y = 16/4\r
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\n" ); document.write( "\n" ); document.write( "x+y = 4\r
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\n" ); document.write( "\n" ); document.write( "3(x+y) = 3*4\r
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\n" ); document.write( "\n" ); document.write( "3x+3y = 12\r
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