document.write( "Question 943094: Two records and three tapes cost $31. Three records and two tapes cost $29. Find the cost of each record and each tape.
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Algebra.Com's Answer #579153 by booklover15(10)\"\" \"About 
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Records : r
\n" ); document.write( "Tape : t\r
\n" ); document.write( "\n" ); document.write( "2r+3t = $31
\n" ); document.write( "3r+2t = $29
\n" ); document.write( "Then we do elimination by making one of the variables the same value (in this case the r)
\n" ); document.write( "6r+9t = $93 (Make the r the same value by multiplying with 3)
\n" ); document.write( "6r+4t = $58. (Make the r the same value as the 6r by multiplying with 2)
\n" ); document.write( "__________- (we subtract the r to get the value of t)
\n" ); document.write( "5t = $35
\n" ); document.write( "t= $7\r
\n" ); document.write( "\n" ); document.write( "Then we substitute the r (choose either one of the equations to find the r)\r
\n" ); document.write( "\n" ); document.write( "2r+3t = $31
\n" ); document.write( "2r+3 x $7 = $31
\n" ); document.write( "2r = $31 - $21
\n" ); document.write( "2r = $10
\n" ); document.write( "r = $5\r
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