document.write( "Question 285492: an office supply store sells 7 writing tablets and 4 pens for 6.40. also 2 tablets and 19 pens cost 5.40 find the price of each \n" ); document.write( "
Algebra.Com's Answer #206934 by mananth(16946)\"\" \"About 
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Let the tablets be x
\n" ); document.write( "and the pens be y\r
\n" ); document.write( "\n" ); document.write( "7x+4y=6.4----------- Multiply by 2
\n" ); document.write( "2x+19y=5.4-----------Multiply by 7\r
\n" ); document.write( "\n" ); document.write( "14x+8y=12.8\r
\n" ); document.write( "\n" ); document.write( "14x+133y=37.8\r
\n" ); document.write( "\n" ); document.write( "(14x+8y)-(14x-133)=12.8-37.8\r
\n" ); document.write( "\n" ); document.write( "8y+133=25+133\r
\n" ); document.write( "\n" ); document.write( "141y=158 \r
\n" ); document.write( "\n" ); document.write( "y=158/141\r
\n" ); document.write( "\n" ); document.write( "=1.12 price of pens\r
\n" ); document.write( "\n" ); document.write( "14x+8*1.12= 12.8\r
\n" ); document.write( "\n" ); document.write( "14x=12.8-8.96\r
\n" ); document.write( "\n" ); document.write( "14x=3.84\r
\n" ); document.write( "\n" ); document.write( "x=3.84/14\r
\n" ); document.write( "\n" ); document.write( "x=0.27 price of tablets\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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