document.write( "Question 1130574: Please help....word problems are the death of me!!!!
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document.write( "The sum of three numbers is 1. If the second number is subtracted from the sum of the first and third numbers, the result is -1. If the third number is subtracted from the sum of the first and second numbers, the result is -9. Find the three numbers. \n" );
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Algebra.Com's Answer #747234 by ikleyn(52817)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "Let the numbers be x, y and z.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Then the problem says\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "x + y + z = 1 (1)\r\n" ); document.write( "x - y + z = -1 (2)\r\n" ); document.write( "x + y - z = -9 (3)\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Do not be afraid. Simply subtract equation (2) from equation (1). The terms \"x\" and \"z\" will cancel each other and you will get\r\n" ); document.write( "\r\n" ); document.write( " 2y = 1 - (-1) = 2 =====> y = 2/2 = 1.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Next subtract equation (3) from equation (1). The terms \"x\" and \"y\" will cancel each other and you will get\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 2z = 1 - (-9) = 10 =====> z = 10/2 = 5.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "As the last step, substitute y= 1 and z= 5 into equation (1). You will get\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "x + 1 + 5 = 1 =====> x = -5.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Answer. x= -5; y= 1; z= 5.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Regarding word problems, if you want to learn on how to solve them, you have this rare, brilliant and unique opportunity.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Go to the link\r \n" ); document.write( "\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Click on it.\r \n" ); document.write( "\n" ); document.write( "You will see the forefront page of the online textbook in Algebra-I.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It is free of charge online textbook.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "In this forefront page find the section Word problems.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You will find the list of most typical/popular word problems there.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Go to this list - click on any, each and every item and topic of it.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You will find priceless treasures there !\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Read these lessons - any of your choice - and become familiar with the most typical word problems.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Than more you read - than more you will learn and will know. Than more you will develop your skills and knowledge.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " H a p p y l e a r n i n g ! !\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( " Save the link to this online textbook together with its description\r\n" ); document.write( "\r\n" ); document.write( "Free of charge online textbook in ALGEBRA-I\r\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r\n" ); document.write( "\r\n" ); document.write( " to your archive and use it when it is needed.\r\n" ); document.write( "\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |