1.

12 x+13y=60;13x+12y=40 . solve the equation by simultaneous equation.​

Answer»

ong>Answer:

The given equations are

12x+13Y=29…(i)

13x+12y=21…(ii)

ADD (i) and (ii), we get

12x + 13y =29

13x + 12y =21

-------------------

25x + 25Y =50

25(x+y) = 50

x + y = 2



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