वज्रगुणन विधि से हल करें 5x +3y = 10 और 2x +4y = 28
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Answer:
2(5x + 3y = 10)
10x + 6y = 20-----(i)
5(2x + 4y = 28)
10x + 20y = 140-------(ii)
Equating (i) & (ii)
we get
-14y = -120
y = 60/7
Put y value in (i)
we get,
10x = 140-360/7
10x = -220/7
x = -22/7
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