Math, asked by kumarsinghrahul974, 23 hours ago

k का वह मान जिसके लिए रेखाएँ 5x+7y=3 और 15x + 21y = k संपाती हैं

Answers

Answered by sushilameher02
2

Answer:

here condition needed is a1/a2=b1/b2=c1/c2

a1/a2=5/15=1/3

so c1/c2=1/3

c1/c2=3/k

1/3=3/k=>k=9

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