document.write( "Question 124206: -x/3=3 SOLVE \r
\n" ); document.write( "\n" ); document.write( "Ive tried multiplying both sides by 3 and then multiplying the top number by 3 and solving and its still not working.. PLEASE let me know what im doing wrong
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Algebra.Com's Answer #91023 by bucky(2189)\"\" \"About 
You can put this solution on YOUR website!
Given:
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\n" ); document.write( "\"%28-x%29%2F3=3+\"
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\n" ); document.write( "When you multiply both sides by 3 you get:
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\n" ); document.write( "\"%283%2A%28-x%29%29%2F3+=+3%2A3\"
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\n" ); document.write( "On the left side the 3 in the numerator cancels with the 3 in the denominator to give:
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\n" ); document.write( "\"%28cross%283%29%2A%28-x%29%29%2Fcross%283%29+=+3%2A3\"
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\n" ); document.write( "On the left side you are left with just -x and on the right side the 3 times the 3 is 9.
\n" ); document.write( "This makes the equation:
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\n" ); document.write( "\"-x+=+9\"
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\n" ); document.write( "But you want to solve for +x, so just multiply both sides by -1 and you have:
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\n" ); document.write( "\"x+=+-9\"
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\n" ); document.write( "Check the answer by returning to the original equation you were given and substitute into
\n" ); document.write( "that equation -9 for x. So start with:
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\n" ); document.write( "\"%28-x%29%2F3=3+\"
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\n" ); document.write( "When you replace x with -9 it becomes:
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\n" ); document.write( "\"%28-%28-9%29%29%2F3=3+\"
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\n" ); document.write( "The two minus signs in the numerator on the right side combine to be a + sign and the
\n" ); document.write( "equation is then:
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\n" ); document.write( "\"9%2F3=3+\"
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\n" ); document.write( "And when you divide out the left side the result is:
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\n" ); document.write( "\"3+=+3\"
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\n" ); document.write( "which is true. Therefore, x = -9 is the correct answer.
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\n" ); document.write( "Hope this helps you to find your mistake.
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