Question

For what value of k, the pair of equation 2x + 3y +5 -
and kx+4y= 10, has a unique solutions?
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Answer 1

Answer:

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Step-by-step explanation:

Given equations :-

» 2x + 3y + 5 = 0

» kx + 4y = 10

➡ kx + 4y - 10 = 0

we have to find the value of k such that the pair of equations have unique solution.

we know that, when pair of equations have unique solution,

a1/a2 ≠ b1/b2

➡ 2/k ≠ 3/5

put any value of k so that it doesn't get equal to 3/5.

you can put 1, 2 etc.

for example, k is 2, then a1/a2 = 2/2 = 1

LHS ≠ RHS

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