document.write( "Question 1171574: x=3y,x-3y=0 using substitution \n" ); document.write( "
Algebra.Com's Answer #796476 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
YOU do the substitution and solve for the single variable resulting from this. Use the result found to evaluate the other variable. \n" ); document.write( "
\n" );