document.write( "Question 987435: 2 tables and 3 chairs together cost $2140, but 3 tables and 2 chairs together cost $2760. find the individual cost of the table and the chair. \n" ); document.write( "
Algebra.Com's Answer #608208 by macston(5194)\"\" \"About 
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\n" ); document.write( "T=cost of table; C=cost of chair
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\n" ); document.write( "2T+3C=$2140 Multiply by 3.
\n" ); document.write( "6T+9C=$6420
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\n" ); document.write( "3T+2C=$2760 Multiply by 2.
\n" ); document.write( "6T+4C=$5520 Subtract this from second equation above.
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\n" ); document.write( "5C=$900
\n" ); document.write( "C=$180
\n" ); document.write( "ANSWER 1:One chair costs $180.
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\n" ); document.write( "2T+3C=$2140
\n" ); document.write( "2T+3($180)=$2140
\n" ); document.write( "2T+$540=$2140
\n" ); document.write( "2T=$1600
\n" ); document.write( "T=$800
\n" ); document.write( "ANSWER 2: One table costs $800.
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\n" ); document.write( "CHECK:
\n" ); document.write( "(Use second equation)
\n" ); document.write( "3T+2C=$2760
\n" ); document.write( "3($800)+2($180)=$2760
\n" ); document.write( "$2400+$360=$2760
\n" ); document.write( "$2760=$2760\r
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