document.write( "Question 1189810: Miguel and Javier went to an arcade where the machines took tokens. Miguel played 9 games of ping pong and 5 games of pinball, using a total of 29 tokens. At the same time, Javier played 3 games of ping pong and 1 game of pinball, using up 7 tokens. \r
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Algebra.Com's Answer #821296 by ikleyn(52809)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "Miguel and Javier went to an arcade where the machines took tokens.
\n" ); document.write( "Miguel played 9 games of ping pong and 5 games of pinball, using a total of 29 tokens.
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\n" ); document.write( "Part A: Write a system of equation to model this situation.
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document.write( "Let x be the number of tokens to play ping pong,\r\n" );
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document.write( "    y be the number of tokens to play pinball.\r\n" );
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document.write( "Then the system of equation is as you read the problem\r\n" );
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document.write( "    9x + 5y = 29   tokens  (as Miguel played)\r\n" );
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document.write( "    3x +  y =  7   tockens (as Javier played).\r\n" );
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\n" ); document.write( "\n" ); document.write( "For many similar problems,  writing systems of equations  (setup)  is usually quite simple routine part of the solution.\r
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\n" ); document.write( "\n" ); document.write( "The key words in this activity,  that may help to a beginner student,  are  \"write equations as you read the problem\".\r
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\n" ); document.write( "\n" ); document.write( "These words define an instruction for you \"what to do\" :  read the problem first and then re-read it
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\n" ); document.write( "\n" ); document.write( "To extend your practice/knowledge,  see the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Roses and violets \r
\n" ); document.write( "\n" ); document.write( "    - Counting calories and grams of fat in combined food\r
\n" ); document.write( "\n" ); document.write( "    - A theater group made appearances in two cities\r
\n" ); document.write( "\n" ); document.write( "    - Exchange problems solved using systems of linear equations \r
\n" ); document.write( "\n" ); document.write( "    - Typical word problems on systems of 2 equations in 2 unknowns \r
\n" ); document.write( "\n" ); document.write( "    - HOW TO algebreze and solve this problem on 2 equations in 2 unknowns \r
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\n" ); document.write( "\n" ); document.write( "After reading these lessons,  you will tackle such problems without asking for help from outside.\r
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\n" ); document.write( "\n" ); document.write( "The lesson to learn from my post is THIS :\r
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\n" ); document.write( "\n" ); document.write( "        The internal combustion engine needs to turn on the ignition first to start working.\r
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\n" ); document.write( "\n" ); document.write( "        Likewise, begin your work on solving word problems saying  \" write equation/equations as you read the problem \".\r
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