I just wanted to ask that when we do the elimination method how do we get to know when to subtract or add 2 the equations??

Asked by alka ashok | 29th May, 2013, 06:01: PM

Expert Answer:

In elimination method, if the coefficient of the variable that you are trying to eliminate have same sign (+ve or -ve), then you need to the subtract the 2 equations else you will have to add them. At the end of the day, whatever you do, you need to eliminate one variable. 

Answered by  | 30th May, 2013, 03:03: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.