Math, asked by tameshp20, 3 months ago

निम्नलिखित समीकरण को विलोपन विधि से हल कीजिए 3x+4y=-6,3x-y=9​

Answers

Answered by xxmysteriousgirlxx46
43

Answer:

Question

✳️निम्नलिखित समीकरण को विलोपन विधि से हल कीजिए 3x+4y=-6,3x-y=9

Solution ⬇️

✍️3x+4y=-6...(1)

✍️(-)3x-(+)y=(-)9...(2) subtracting equation 2 and 1

___________________

✍️5y=-15

 =  =  > y =  \frac{ - 15}{5}  =   \frac{  - 3}{1}  =  - 3

✳️ Substituting value y=-3 in equation 1

✍️3x+4y=-6...(1)

✍️3x+4(-3)=-6

✍️3x+(-12)=-6

✍️3x-12=-6

✍️3x=-6+12

✍️3x=6

 =  =  > x =  \frac{6}{3}  =  \frac{2}{1}  = 2

✳️(x,y)(2,-3) is the solution of the given quadratic equation

Step-by-step explanation:

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