document.write( "Question 1123560: How do you translate one more than the difference between 18 and seven times a number is -9 into an equation? \n" ); document.write( "

Algebra.Com's Answer #739918 by Edwin McCravy(20055) $\"\"$ $\"About$

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How do you translate one more than the difference between
\n" ); document.write( "18 and seven times a number is -9 into an equation?
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document.write( "\"The words \"is -9\" is the right side of the equation and on the end\r\n" );
document.write( "of the equation will be \" = -9\"\r\n" );
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document.write( "Now we'll do the left side of the equation:\r\n" );
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document.write( "\"X more than Y\"  means \"Y+X\"\r\n" );
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document.write( "So \r\n" );
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document.write( "\"one more than the difference between 18 and seven times a number is -9\r\n" );
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document.write( "is a case of \"X more than Y\", where\r\n" );
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document.write( "X = \"one\",  and\r\n" );
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document.write( "Y = \"the difference between 18 and seven times a number\"\r\n" );
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document.write( "So Y + X = \"the difference between 18 and seven times a number\" + \"one\"\r\n" );
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document.write( "or using the number 1 instead of the word \"one\":\r\n" );
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document.write( "So Y + X = \"the difference between 18 and seven times a number\" + 1\r\n" );
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document.write( "-----\r\n" );
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document.write( "Next, \"The difference between Z and W\"  means Z-W, where\r\n" );
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document.write( "Z = 18 and W = \"seven times a number\"\r\n" );
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document.write( "So Z-W = (18-\"seven times a number\")\r\n" );
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document.write( "So far we have \r\n" );
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document.write( "Y + X = (\"the difference between 18 and seven times a number\") + 1\r\n" );
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document.write( "So far we have\r\n" );
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document.write( "\"18-\"seven times a number\" + 1\r\n" );
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document.write( "----------------------------\r\n" );
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document.write( "\"X times Y\" means X∙Y\r\n" );
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document.write( "So \"seven times a number\"  means \"7 ∙ a number\"\r\n" );
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document.write( "So far we have:\r\n" );
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document.write( "(\"18-\"seven times a number\") + 1 which means\r\n" );
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document.write( "(\"18-\"7 ∙ a number\") + 1\r\n" );
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document.write( "-----------------------------\r\n" );
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document.write( "\"a number\" means the unknown variable, say N\r\n" );
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document.write( "So far, we have \r\n" );
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document.write( "(\"18-\"7 ∙ a number\") + 1\r\n" );
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document.write( "which becomes:\r\n" );
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document.write( "(\"18-\"7 ∙ N\") + 1 or \r\n" );
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document.write( "\"(18-7N) + 1\" \r\n" );
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document.write( "And finally we put on the right side \" = -9 \"\r\n" );
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document.write( "(18-7N) + 1 = -9\r\n" );
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document.write( "Edwin

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