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
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
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