document.write( "Question 63700: 4(7x + 10) = 3(9x – 5) + 20 \n" ); document.write( "
Algebra.Com's Answer #44405 by checkley71(8403)\"\" \"About 
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4(7X+10)=3(9X-5)+20
\n" ); document.write( "28X+40=27X-15+20
\n" ); document.write( "28X-27X=-15+20-40
\n" ); document.write( "X=-35
\n" ); document.write( "PROOF
\n" ); document.write( "4(7*-35+10)=3(9*-35-5)+20
\n" ); document.write( "4(-245+10)=3(-315-5)+20
\n" ); document.write( "4*-235=3*-320+20
\n" ); document.write( "-940=-960+20
\n" ); document.write( "940=940
\n" ); document.write( " \n" ); document.write( "
\n" );