document.write( "Question 1158451: Given that 19x+7y =5 and 17x +13y=1 . Find the value of 91x+47y \n" ); document.write( "
Algebra.Com's Answer #781414 by Alan3354(69443)\"\" \"About 
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Given that 19x+7y =5 and 17x +13y=1 . Find the value of 91x+47y
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\n" ); document.write( "You can solve for x & y, then find the value.
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\n" ); document.write( "Or, you can notice that 3 times the 1st + 2 times the 2nd equation
\n" ); document.write( "---> 91x+47y
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