document.write( "Question 1152425: Frank bought 2 shirts and 1 pair of dress pants for a total of $55. If he had bought 1 shirt and 2 pairs of dress pants, he would have paid $68. What was the price of each shirt and each pair of dress pants? \n" ); document.write( "

Algebra.Com's Answer #774443 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+a+\"$ = the price of a shirt
\n" ); document.write( "Let $\"+b+\"$ = the price of pants
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\n" ); document.write( "(1) $\"+2a+%2B+b+=+55+\"$
\n" ); document.write( "(2) $\"+a+%2B+2b+=+68+\"$
\n" ); document.write( "----------------------------
\n" ); document.write( "(2) $\"+a+=+-2b+%2B+68+\"$
\n" ); document.write( "Plug this result back into (1)
\n" ); document.write( "(1) $\"+2%2A%28+-2b+%2B+68+%29+%2B+b+=+55+\"$
\n" ); document.write( "(1) $\"+-4b+%2B+136+%2B+b+=+55+\"$
\n" ); document.write( "(1) $\"+-3b+=+-81+\"$
\n" ); document.write( "(1) $\"+b+=+27+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+2a+%2B+27+=+55+\"$
\n" ); document.write( "(1) $\"+2a+=+28+\"$
\n" ); document.write( "(1) $\"+a+=+14+\"$
\n" ); document.write( "----------------------
\n" ); document.write( "$14 = the price of a shirt
\n" ); document.write( "$27 = the price of pants
\n" ); document.write( "--------------------------------
\n" ); document.write( "check:
\n" ); document.write( "(1) $\"+2a+%2B+b+=+55+\"$
\n" ); document.write( "(1) $\"+2%2A14+%2B+27+=+55+\"$
\n" ); document.write( "you can do (1) and (2)\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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