document.write( "Question 85194: 2x-{4x-2[3x-4(2-2x)+6+4]-5x+3} \n" ); document.write( "
Algebra.Com's Answer #61400 by bucky(2189)![]() ![]() ![]() You can put this solution on YOUR website! Given: \n" ); document.write( ". \n" ); document.write( "2x-{4x-2[3x-4(2-2x)+6+4]-5x+3} \n" ); document.write( ". \n" ); document.write( "A good approach is to start with the most interior set of parentheses and work your way \n" ); document.write( "out from there. In this case the most interior set is the one that contains 2 - 2x. \n" ); document.write( "Nothing can be done with the contents inside the parentheses, but you can do the distributed \n" ); document.write( "multiplication by multiplying the -4 times each term inside the parentheses. When you do \n" ); document.write( "that multiplication of -4 times (2 - 2x), the parentheses go away and your problem becomes: \n" ); document.write( ". \n" ); document.write( "2x-{4x-2[3x-8+8x+6+4]-5x+3} \n" ); document.write( ". \n" ); document.write( "Next look at the terms inside the brackets. These terms are: \n" ); document.write( ". \n" ); document.write( "[3x-8+8x+6+4] \n" ); document.write( ". \n" ); document.write( "and the like terms can be combined. Specifically you have 3x + 8x which add to 11x and \n" ); document.write( "you have -8+6+4 which adds to +2. Therefore the terms inside the brackets are reduced to \n" ); document.write( "11x + 2. Substitute [11x + 2] for the existing bracketed terms and the problem then is \n" ); document.write( "simplified to: \n" ); document.write( ". \n" ); document.write( "2x - {4x - 2[11x + 2]-5x + 3} \n" ); document.write( ". \n" ); document.write( "Now do the distributed multiplication of -2 times the two terms inside the brackets. \n" ); document.write( "The -2 times 11x gives you -22x and the -2 times the +2 gives you -4. The problem is \n" ); document.write( "then simplified to: \n" ); document.write( ". \n" ); document.write( "2x - {4x - 22x - 4 - 5x + 3} \n" ); document.write( ". \n" ); document.write( "The like terms inside this set of brackets can also be combined. 4x - 22x - 5x algebraically \n" ); document.write( "add up to -23x and the -4 and +3 add to -1. So the terms inside the brackets can be replaced \n" ); document.write( "by -23x - 1 and the problem becomes: \n" ); document.write( ". \n" ); document.write( "2x - {-23x - 1} \n" ); document.write( ". \n" ); document.write( "Then since this set of brackets is preceded by the - sign, you can remove the brackets \n" ); document.write( "if you change the sign of each term in the brackets. When you do that the simplified \n" ); document.write( "version of the problem is now: \n" ); document.write( ". \n" ); document.write( "2x + 23x + 1 \n" ); document.write( ". \n" ); document.write( "Combine the two x terms and the final answer is: \n" ); document.write( ". \n" ); document.write( "25x + 1 \n" ); document.write( ". \n" ); document.write( "Hope this helps you to understand the process of how to work simplifications of this sort. \n" ); document.write( "Not too hard, but you need to be careful not to make sign errors because it's easy to do. \n" ); document.write( " \n" ); document.write( " |