document.write( "Question 53754: I need help with solving inequalities, w+3>7w-9\r
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document.write( "as far as i seem to get (and then i get lost) is\r
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document.write( "w+3>7w-9
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document.write( "Divide 3 by 3 and 7w-9 by 3
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document.write( "and then im stuck help! \n" );
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Algebra.Com's Answer #36001 by aaaaaaaa(138)![]() ![]() ![]() You can put this solution on YOUR website! In equations and inequalities, you only divide the entire terms by a number. Why am I telling you that? 3 or 9 aren't terms so you can divide them, w-3 and 7w-9 are. Since none of them can actually be divided by 3, we have to find another operation, specifically we'll need only addition and subtraction by now:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now we use division: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now, a catch: assume I had subtracted 7w on both sides instead of w:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This isn't correct. The fact is that I've multiplied by -1/6 (dividing by -6 is the same thing as multiplying by -1/6) in the last step and, as a multiplication by a negative number, the signs must be reversed:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |