Question

Find K, so that x = 3 is a solution of the equation Kx + 8 = x - 7​

Answer 1

Step-by-step explanation:

put x=3

k(3)+8=3-7

3k= -12

k= -4

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Answer 2

Answer:

$kx + 8 = x - 7 \\ = 3k + 8 = 3 - 7 \\ = 3k = - 4 - 8 \\ = 3k = - 12 \\ = k = - 4$

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Step-by-step explanation:

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