document.write( "Question 174724: If 12x+7y=19 and 4x-y=3 then what is the value of 8x+8y? \n" ); document.write( "
Algebra.Com's Answer #129780 by jim_thompson5910(35256)\"\" \"About 
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\"12x%2B7y=19\" Start with the first equation.\r
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\n" ); document.write( "\n" ); document.write( "\"%2812x%2B7y%29-%284x-y%29=19-3\" Subtract the second equation from the first equation.\r
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\n" ); document.write( "\n" ); document.write( "\"12x%2B7y-4x%2By=19-3\" Distribute\r
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\n" ); document.write( "\n" ); document.write( "\"8x%2B8y=16\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "So the answer is \"8x%2B8y=16\"
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