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
\n" ); document.write( "\n" ); 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
\n" ); document.write( "\n" ); document.write( "3x + 11y = 34.5\r
\n" ); document.write( "\n" ); document.write( "9x – 7y = -16.5
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Algebra.Com's Answer #265538 by josmiceli(19441)\"\" \"About 
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( "\"3x+%2B+11y+=+34.5\"
\n" ); document.write( "\"9x+-+7y+=+-16.5\"
\n" ); document.write( "Multiply both sides of equation 1 by \"3\"
\n" ); document.write( "\"9x+%2B+33y+=+103.5\"
\n" ); document.write( "Now you can multiply both sides of equation 2 by \"-1\"
\n" ); document.write( "and add the equations
\n" ); document.write( "\"9x+%2B+33y+=+103.5\"
\n" ); document.write( "\"-9x+%2B+7y+=+16.5\" (note that all the signs are changed)
\n" ); document.write( "Adding:
\n" ); document.write( "\"40y+=+120\"
\n" ); document.write( "Divide both sides by \"40\"
\n" ); document.write( "\"y+=+3\"
\n" ); document.write( "Now you can plug this result back into
\n" ); document.write( "either equation and find \"x\"
\n" ); document.write( "Does this help?\r
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