document.write( "Question 349179: The total cost of a TV and a VCR is $890. If twice the cost of the VCR is $70 more than the cost of the TV, how much does the VCR Cost? Thank You \n" ); document.write( "

Algebra.Com's Answer #249609 by vleith(2983) $\"\"$ $\"About$

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Let v be the price of the VCR and t be the price of the TV
\n" ); document.write( "You are told
\n" ); document.write( " $\"v+%2B+t+=+890\"$
\n" ); document.write( " $\"2v+=+t+%2B+70\"$ so
\n" ); document.write( " $\"2v+-+70+=+t\"$
\n" ); document.write( "Substitute this last equation's value for t into the first equation
\n" ); document.write( " $\"v+%2B+%282v-70%29+=+890\"$
\n" ); document.write( " $\"3v+-+70+=+890\"$
\n" ); document.write( " $\"3v+=+960\"$
\n" ); document.write( " $\"v+=+320\"$
\n" ); document.write( "If v is 320, then $\"2%2A320+-+70+=+t\"$
\n" ); document.write( "So $\"640+-70+=+t\"$
\n" ); document.write( " $\"570+=+t\"$
\n" ); document.write( "Check your answer, does 320+570 = 890?
\n" ); document.write( " \n" ); document.write( "

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