document.write( "Question 71703This question is from textbook Intermediate Algebra
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document.write( ": 4-3|x-2|=-8\r
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document.write( "Thank you for your help.
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document.write( "Tammi \n" );
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Algebra.Com's Answer #51266 by bucky(2189) ![]() You can put this solution on YOUR website! 4-3|x-2|=-8 \n" ); document.write( ". \n" ); document.write( "Up to a point, you can work this just as you would work a normal equation. With that in \n" ); document.write( "mind, your initial task is to get all the numbers on the right side of the equal sign and \n" ); document.write( "the term involving x on the left side. \n" ); document.write( ". \n" ); document.write( "So lets start by subtracting 4 from both sides to get rid of the 4 on the left side. \n" ); document.write( "After you do that subtraction you have changed the equation to: \n" ); document.write( ". \n" ); document.write( "-3|x-2| = -12 \n" ); document.write( ". \n" ); document.write( "Since -3 is the multiplier of the left side, get rid of it by dividing both sides by -3 to \n" ); document.write( "get: \n" ); document.write( ". \n" ); document.write( "|x-2| = +4 \n" ); document.write( ". \n" ); document.write( "Here's a way that I now would look at this problem. Look at the quantity inside the absolute \n" ); document.write( "value signs. It can either be +(x-2) or it can be -(x-2) and the absolute value signs \n" ); document.write( "will change it to +(x-2) so both of these [+(x-2)] and [-(x-2)] will work. \n" ); document.write( ". \n" ); document.write( "Write this in the form of two equations to be solved. The first equation is: \n" ); document.write( ". \n" ); document.write( "+(x-2) = +4 \n" ); document.write( ". \n" ); document.write( "and the second equation is: \n" ); document.write( ". \n" ); document.write( "-(x-2) = +4 \n" ); document.write( ". \n" ); document.write( "From the first you get: \n" ); document.write( ". \n" ); document.write( "x - 2 = +4 \n" ); document.write( ". \n" ); document.write( "and by adding +2 to both sides you arrive at: \n" ); document.write( ". \n" ); document.write( "x = +6 This is one answer that will work. \n" ); document.write( ". \n" ); document.write( "And from the second equation you get: \n" ); document.write( ". \n" ); document.write( "-(x-2) = +4 \n" ); document.write( ". \n" ); document.write( "And by removing the parentheses you get: \n" ); document.write( ". \n" ); document.write( "-x + 2 = +4 \n" ); document.write( ". \n" ); document.write( "Subtracting +2 from both sides reduces this equation to: \n" ); document.write( ". \n" ); document.write( "-x = +2 \n" ); document.write( ". \n" ); document.write( "And finally, we are trying to solve for x not for -x. So we multiply both sides by -1 to \n" ); document.write( "arrive at: \n" ); document.write( ". \n" ); document.write( "x = -2 This is a second solution to this problem. \n" ); document.write( ". \n" ); document.write( "The two answers to this problem are x = +6 and x = -2. Check them by substituting \n" ); document.write( "them into the original problem and you will find that they work. \n" ); document.write( ". \n" ); document.write( "I hope this helps you by providing a way you can work absolute value problems. Not everyone \n" ); document.write( "works these problems this way, but I find it easy for me to understand and remember. \n" ); document.write( "Maybe you will too. \n" ); document.write( " |