Question

13x + 12y = 7 and 12x + 13y = 5 then x - y = ??​

Answer 1

(13x+12y=7)*12=156x+144y=84.......(i)

and(12x+13y=5)*13=156x+169y=65...(ii)

now (i) -(ii) gives

-25y=19

y=-19/25

now x=31/25

nlw x-y=(31/25)-(-19/25)

=(31-19)/25=50/25=2

MARK BRAINLIEST

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