document.write( "Question 150824: Solve |-10x + 70| = |8x - 74| \r
\n" ); document.write( "\n" ); document.write( "I really have no idea as to how to go about starting this problem.... Please help!
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Algebra.Com's Answer #110814 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"abs%28-10x%2B70%29=abs%288x-74%29\"
\n" ); document.write( "Absolute value problems are typically two problems in one (positive and negtive solution).
\n" ); document.write( "That's because \"abs%28x%29=x\" if x>0 and \"abs%28x%29=-x\" if x<0.
\n" ); document.write( "With an absolute value sign on each side, it now becomes 4 equations to solve.\
\n" ); document.write( "1. Positive=Positive
\n" ); document.write( "2. Positive=Negative
\n" ); document.write( "3. Negative=Positive
\n" ); document.write( "4. Negative=Negative
\n" ); document.write( "Luckily, if you look at the equations, 1 and 4 are the same, and 2 and 3 are the same.
\n" ); document.write( "That is, if I multiply both sides of 1 by (-1), I get 4, and the same for 2 and 3.
\n" ); document.write( "So you really only have to solve two equations, we'll call them A and B.
\n" ); document.write( "A.\"%28-10x%2B70%29=%288x-74%29\"
\n" ); document.write( "B.\"%28-10x%2B70%29=-%288x-74%29\"
\n" ); document.write( "Let's start with A,
\n" ); document.write( "A.\"-10x%2B70=8x-74\"
\n" ); document.write( "\"-18x=-144\"
\n" ); document.write( "\"highlight%28x=8%29\"
\n" ); document.write( "and then B,
\n" ); document.write( "B.\"-10x%2B70=-%288x-74%29\"
\n" ); document.write( "\"-10x%2B70=-8x%2B74%29\"
\n" ); document.write( "\"-2x=4%29\"
\n" ); document.write( "\"highlight%28x=-2%29\"
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