document.write( "Question 467431: A salesperson works in the TV ans stereo department of an electronics store. One day she sold 3 TV's and 4 Stereos for $2530. The next day, she sold 4 TVs and 3 stereos $2510. Assuming they are all the same TV's and stereos hat is the price of each TV ans stereo? \n" ); document.write( "
Algebra.Com's Answer #320742 by lwsshak3(11628)\"\" \"About 
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A salesperson works in the TV ans stereo department of an electronics store. One day she sold 3 TV's and 4 Stereos for $2530. The next day, she sold 4 TVs and 3 stereos $2510. Assuming they are all the same TV's and stereos hat is the price of each TV ans stereo?
\n" ); document.write( "..
\n" ); document.write( "let x=price of stereos
\n" ); document.write( "let y=price of TV's
\n" ); document.write( "..
\n" ); document.write( "3y+4x=2530
\n" ); document.write( "4y+3x=2510
\n" ); document.write( "..\r
\n" ); document.write( "\n" ); document.write( "12y+16x=4*2530 (1st eq.*4)
\n" ); document.write( "12y+9x=3*2510 (2nd eq.*3
\n" ); document.write( "subtract
\n" ); document.write( "7x=2590
\n" ); document.write( "x=2590/7=370
\n" ); document.write( "..
\n" ); document.write( "4y=2510-3x=2510-3*370=1400
\n" ); document.write( "y=1400/4=350
\n" ); document.write( "Ans:
\n" ); document.write( "Price of stereo=$370
\n" ); document.write( "Price of TV=$350 \n" ); document.write( "
\n" );