x-y=1 and 9x+3y=4 solve this by cross multiplication method .
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Answer:
(x,y) = (7/12,-5/12)
Step-by-step explanation:
Given equation : x-y=1 and 9x+3y=4
x-y-1=0 and 9x+3y-4=0
x y 1
-1 -1 1 -1 =>
3 -4 9 3 => x = 7/12 , y = -5/12
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