document.write( "Question 107455: A man buys a lamp and a table for 390 $. The table cost 80 $ more than the lamp. Find the cost of each aricle. \n" ); document.write( "

Algebra.Com's Answer #78223 by Annabelle1(69) $\"\"$ $\"About$

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let the cost of the lamp be x
\n" ); document.write( "the cost of the table is then x+80\r
\n" ); document.write( "\n" ); document.write( "the total cost is then x+x+80
\n" ); document.write( "=2x+80\r
\n" ); document.write( "\n" ); document.write( "this is equal to 390\r
\n" ); document.write( "\n" ); document.write( "2x+80=390\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "

Solved by pluggable solver: SOLVE a linear equation

Solve $\"2%2Ax%2B80=390\"$ . Move 80 to the right: $\"2%2Ax=390-80\"$ . Divide by 2: $\"x=%28390-80%29%2F2=310%2F2+=+155\"$

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\n" ); document.write( "\n" ); document.write( "so the lamp(x) was $155
\n" ); document.write( "the table then 155+80=235 \n" ); document.write( "

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