Math, asked by kate441, 1 year ago

(3,-4) is a solution of the equation -5x+ky=3,then the value of k is?

Answers

Answered by vvirc
1

Answer:

k = 4,5

Step-by-step explanation:

You have to replace the x for 3 and the y for -4.

-5 . x + k  .  y = 3

-5 . 3 + k . -4 = 3

So, the incongnit in the ecuation is k.

Resolve first -5 . 3, which is -15, and past that resault to the right side in the opposite operation. In this case, subtracting.

k . -4 = 3 - (-15) -> Negative/Negative = Positive, so

k . -4 = 3 + 15

k . -4 = 18

Then, you have to pass -4  dividing

k = 18/-4

k = -4.5

Good luck!

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