2(ax-by)+a+4b=0, 2(bx+ay) +b-4a=0 solve these equation for x and y. CBSE Previous year question,Imp. 

Question: Sir but starting Mai a and b se equations ko multiply Kiya, ye exam Mai kaise click hoga .... Like iske jese similiar questions aye to usme kya karna hai aage wo kese pata lagaye

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Sir apne jaha per 2 ko cut kiya to -ax bacha aapne to sirf -a liya hai

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Sir agar humein subtract Krna hota to kya neeche waley 4ab ka sigh change hota ya nhi plz batana

why did u multiply a and b in both the equations?

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Sir plzz do this question in cross multiplication method

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