Math, asked by ashweetawaghamare, 8 months ago

select and write the most appropriate alternative from those given below if 13x+12y=18and 12x+13y=7th end x+y=_​

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Answered by nilam832
1

Answer:

13x+12y=18 if we add 12x+13y=7 we may get 25x+25y=25 now by dividing 25 on LHS(left hand side of the final equation) as well as RHS (Right hand side of the final equation) what we get is x+y=1

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