document.write( "Question 386916: How many different variables are in the expression 8r-1 +9r-2(q-1) +11? Name each variable \n" ); document.write( "
Algebra.Com's Answer #273473 by user_dude2008(1862)\"\" \"About 
You can put this solution on YOUR website!
2 variables: r, q \n" ); document.write( "
\n" );