document.write( "Question 1172055: Michelle solved this system of equations
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document.write( "using the elimination method:
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document.write( "5y=3x-2
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document.write( "-3y=x+18
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document.write( "Here is her work:
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document.write( "5y=3x-2
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document.write( "-3y=-3(x+18)--->-3=-3x-54
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document.write( "Then she added the equations:
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document.write( "5y=3x-2
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document.write( "+-3y=-3x-54
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document.write( "_
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document.write( "2y=-56
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document.write( "y=-28
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document.write( "=3(-28)=x+18
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document.write( "84=x+18
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document.write( "x=66
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document.write( "Did Michelle solve the problem correctly?
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document.write( "If not, explain where she made a mistake
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document.write( "and solve for the correct answer.
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document.write( " \n" );
document.write( "
Algebra.Com's Answer #796969 by ikleyn(52786)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "On solving single linear equation in one unknown see the lesson\r \n" ); document.write( "\n" ); document.write( " - HOW TO solve a linear equation\r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Consider this lesson as your textbook, handbook, guide, tutorials and (free of charge) home teacher.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Happy learning (!)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "/\/\/\/\/\/\/\/\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "As I understand, the major goal of the visitors of this forum is to learn something and to enrich their knowledge.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "In any case, these are the goals, for which this forum does exist.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Looking into this problem, you either know the subject, or not.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If you do not know the subject, I provide you the link to learn it.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If, in opposite, you know the subject, then this problem will not teach you to anything. It will add nothing to your skills.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Therefore, solving this (and similar) problem/problems will teach you nothing - so it is useless to consider them seriously.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It is why I limited myself in my response by pointing the source for you to learn the subject\r \n" ); document.write( "\n" ); document.write( "and did not go to the solution itself.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |