document.write( "Question 269920: Solve for x.
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document.write( "7[2-(3+4r]=-9+2(1-5r)
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document.write( "7[-1+2r] = -9+2.1 2.-15r
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document.write( "-7+2r -7 -30r
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document.write( "+7 +7
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document.write( " 2r = 0 -30r
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document.write( " +30r +30r
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document.write( " 32r = 0
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document.write( "I have no idea if I am even close with this one. The brackets are throwing me off I think. \n" );
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Algebra.Com's Answer #197768 by unlockmath(1688)![]() ![]() You can put this solution on YOUR website! Hello, \n" ); document.write( "Let's take it step by step: (Note: we'll be solving for \"r\" not \"x\") \n" ); document.write( "7[2-(3+4r]=-9+2(1-5r) \n" ); document.write( "7[-1-4r]=-9+2(1-5r) Notice this step was corrected. \n" ); document.write( "7[-1-4r] = -9+2-10r This step is corrected also. \n" ); document.write( "-7-28r= -7 -10r From this step add 7 to both sides to get: \n" ); document.write( "-28r=-10r Now add 10 r to both sides to get: \n" ); document.write( "-18r=0 Divide both sides by -18 to result in: \n" ); document.write( "r=0 \n" ); document.write( "Plug 0 into the original equation to see if it works. \n" ); document.write( "Make more sense? \n" ); document.write( "RJ \n" ); document.write( "There's a book I wrote that might help: \n" ); document.write( "www.math-unlock.com \n" ); document.write( " |