document.write( "Question 702782: -7+3=
\n" ); document.write( "9+(20)=
\n" ); document.write( "-12+(-13)
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #433148 by mathbird(71)\"\" \"About 
You can put this solution on YOUR website!
-7+3=-4
\n" ); document.write( "9+(20)=29
\n" ); document.write( "-12+(-13)=
\n" ); document.write( "-12-13
\n" ); document.write( "=-25
\n" ); document.write( "
\n" );