document.write( "Question 5305: The equation C=5(F-32)/9 gives the relation between Fahrenheit and Celsius temperatures. Find the temperature at which the reading is the same on both thermometers. \n" ); document.write( "
Algebra.Com's Answer #2708 by arunpaul(104)\"\" \"About 
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C=5(F-32)/9 \r
\n" ); document.write( "\n" ); document.write( "so 9C = 5F-160
\n" ); document.write( "or 9C-5F = -160 ------eq1\r
\n" ); document.write( "\n" ); document.write( "again C -F =0 ------eq2 as per given question\r
\n" ); document.write( "\n" ); document.write( "subtract (equation2 x 9)from equation 1
\n" ); document.write( "9C-5F =-160
\n" ); document.write( "-(9C-9F)= 0
\n" ); document.write( "------------------\r
\n" ); document.write( "\n" ); document.write( "or\r
\n" ); document.write( "\n" ); document.write( "9C-5F =-160
\n" ); document.write( "-9C+9F= 0
\n" ); document.write( "------------------
\n" ); document.write( "-5F +9F = -160
\n" ); document.write( "or 4F = -160
\n" ); document.write( "or F = (-160/4)
\n" ); document.write( "or F = -40\r
\n" ); document.write( "\n" ); document.write( "at -40F = -40C (Ans)
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