Suppose $K$ is a constant, such that no pair of real numbers $(x,y)$ satisfies this system of equations: $$6x + 4y = 7$$ $$Kx + 8y = 7$$

What is the value of $K$?
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<|im_start|>user
Suppose $K$ is a constant, such that no pair of real numbers $(x,y)$ satisfies this system of equations: $$6x + 4y = 7$$ $$Kx + 8y = 7$$

What is the value of $K$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
12
Suppose $K$ is a constant, such that no pair of real numbers $(x,y)$ satisfies this system of equations: $$6x + 4y = 7$$ $$Kx + 8y = 7$$

What is the value of $K$?
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