document.write( "Question 372841: I have pulled my hair out trying to learn this stuff!! If anyone could help me I'd so appreciate it!! thank you!!\r
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document.write( " Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.\r
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document.write( "3x + 11y = 34.5\r
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document.write( "9x – 7y = -16.5 \n" );
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Algebra.Com's Answer #265538 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! It helps to get all the terminology straight, \n" ); document.write( "otherwise, you can't talk about it \n" ); document.write( "You have: \n" ); document.write( "1st equation: \n" ); document.write( "(term 1) + (term 2) = (term 3) \n" ); document.write( "2nd equation: \n" ); document.write( "(term 1) + (term 2) = (term 3) \n" ); document.write( "What you are trying to do is \n" ); document.write( "get either the (term 1)'s equal to each other \n" ); document.write( "or the (term 2)'s equal to each other. \n" ); document.write( "Then the next step is to multiply both sides \n" ); document.write( "of equation 2 by -1\r \n" ); document.write( "\n" ); document.write( "Then when add the equations, you get: \n" ); document.write( "1st equation: \n" ); document.write( "(term 1) + (term 2) = (term 3) \n" ); document.write( "2nd equation: \n" ); document.write( "-(term 1) - (term 2) = -(term 3) \n" ); document.write( "So, you've gotten rid of either the (term 1)'s or the (term 2)'s \n" ); document.write( "-------------- \n" ); document.write( "How do you get (term 1)'s equal to each other? \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Multiply both sides of equation 1 by \n" ); document.write( " \n" ); document.write( "Now you can multiply both sides of equation 2 by \n" ); document.write( "and add the equations \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Adding: \n" ); document.write( " \n" ); document.write( "Divide both sides by \n" ); document.write( " \n" ); document.write( "Now you can plug this result back into \n" ); document.write( "either equation and find \n" ); document.write( "Does this help?\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |