document.write( "Question 492117: I'm doing my math homework, and there is one question I do not know how to solve. How do you solve:
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document.write( "-4=2/5a \n" );
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Algebra.Com's Answer #334939 by Theo(13342)![]() ![]() You can put this solution on YOUR website! -4 = 2/5a\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "multiply both sides of the equation by a to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-4a = 2/5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "divide both sides of the equation by -4 to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "a = -2/20 = -1/10\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "replace a in your original equation to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-4 = 2/5*(-1/10) which becomes:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-4 = 2/(-5/10) which becomes:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-4 = 2/(-.5) which becomes:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-4 = -4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the value of a = -1/10 is good.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "in decimal form, that's a = -.1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |