document.write( "Question 156177: I can not figure out how to do algebric word problems. Not one. \r
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document.write( "If 2 is added to five times a number, the result is equal to 5 more than four times the number. find the number. \n" );
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Algebra.Com's Answer #115051 by Alan3354(69443) You can put this solution on YOUR website! I can not figure out how to do algebric word problems. Not one. \n" ); document.write( "--------- \n" ); document.write( "I think you can. For example - \n" ); document.write( "If 3 times a number is 15, find the number. See? \n" ); document.write( "---------------------- \n" ); document.write( "If 2 is added to five times a number, the result is equal to 5 more than four times the number. find the number. \n" ); document.write( "------------------ \n" ); document.write( "Ok, call the number N, just for convenience. \n" ); document.write( "If you add 2 to it, that's N+2. Easy so far, right? \n" ); document.write( "Now, it says that N+2 is equal to something. It's 5 more than 4 times N, or 5 more than 4N. \n" ); document.write( "So the N+2 is 5 more than the other one, 4N, so if we add 5 to the 4N, they'll be equal. \n" ); document.write( "N+2 = 4N+5 (now the words are dispensed with) \n" ); document.write( "N = 4N + 3 \n" ); document.write( "-3N = 3 \n" ); document.write( "N = -1 \n" ); document.write( "To check, you can substitute, and it's correct.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |