document.write( "Question 1010688: How do we get to know whether we have to subtract or add in simultaneous equations? \n" ); document.write( "
Algebra.Com's Answer #626161 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! The idea is to eliminate one variable and reduce two equations with two unknowns to one equation with one unknown. \n" ); document.write( "Sometimes you add and sometimes you subtract in order to do this, but that is your aim. \n" ); document.write( " |