document.write( "Question 674716: 7a+6b=-36. -7a+b=43 \n" ); document.write( "

Algebra.Com's Answer #419411 by checkley79(3341) $\"\"$ $\"About$

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7a+6b=-36
\n" ); document.write( "-7a+b=43 ADD.
\n" ); document.write( "------------------------
\n" ); document.write( "7B=7
\n" ); document.write( "B=7/7
\n" ); document.write( "B=1 ANS.
\n" ); document.write( "7A+6*1=-36
\n" ); document.write( "7A+6=-36
\n" ); document.write( "7A=-36-6
\n" ); document.write( "7A=-42
\n" ); document.write( "A=-42/7
\n" ); document.write( "A=-6 ANS.
\n" ); document.write( "PROOF:
\n" ); document.write( "-7*-6+1=43
\n" ); document.write( "42+1=43
\n" ); document.write( "43=43 \n" ); document.write( "

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