document.write( "Question 285185: 1 ball and 2 bats cost $21. 2 balls and 1 bat cost $18. How much would 1 ball and 1 bat cost? \n" ); document.write( "
Algebra.Com's Answer #206788 by richwmiller(17219)\"\" \"About 
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L=ball
\n" ); document.write( "T=bat
\n" ); document.write( "1L+2T=21
\n" ); document.write( "2L+1T=18
\n" ); document.write( "3L+3T=39
\n" ); document.write( "3((L+T)=39
\n" ); document.write( "(L+T)=13 (1)
\n" ); document.write( "(L+T)+T=21 (2)
\n" ); document.write( "subtract (1) from (2)
\n" ); document.write( "T=8
\n" ); document.write( "L=5\r
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