document.write( "Question 503912: Mary Wong has $42. She earned $7 per hour. How many hours will she have to work to have a total of $126 \n" ); document.write( "

Algebra.Com's Answer #339453 by josmiceli(19441) $\"\"$ $\"About$

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She needs to make $\"+126+-+42+=+84+\"$ dollars more
\n" ); document.write( "Let $\"h\"$ = the number of hours she works
\n" ); document.write( " $\"+7h+=+84+\"$
\n" ); document.write( " $\"+h+=+12+\"$
\n" ); document.write( "She will have to work 12 hours
\n" ); document.write( " \n" ); document.write( "

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