document.write( "Question 66181: –3(10x – 3) + 10(3x – 3) = x – 7 \n" ); document.write( "
Algebra.Com's Answer #46912 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
-3(10x-3)+10(3x-3)=x-7
\n" ); document.write( "-30x+9+30x-30=x-7
\n" ); document.write( "-21=x-7
\n" ); document.write( "x=-21+7
\n" ); document.write( "x=-14 solution
\n" ); document.write( "proof
\n" ); document.write( "-3(10*-14-3)+10(3*-14-3)=-14-7
\n" ); document.write( "-3(-140-3)+10(-42-3)=-21
\n" ); document.write( "-3*-143+10*-45=-21
\n" ); document.write( "429-450=-21
\n" ); document.write( "-21=-21\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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