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