3x - y =7, x+4y=11 ही एकसामयिक समीकरणे सोडविण्यासाठी निश्चयक पद्धतीने D ची किंमत किती
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Answer:
3x-y=7. (1)
3x+12y=33 -( multiplied this equation by 3). (2)
now subtracting equation 2 from 1
3x+12y=33
3x-y=7
0+13y=26
y=2 put y=2 in (1) equation
3x=9
x=3
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