# Equation of a line

Geometry Level 1

When the line $m: \frac{x-2}{k}=\frac{y+1}{2}=z-3$ is perpendicular to the line $n: \frac{x-2}{2}=y+1=\frac{1-z}{-2}$ and passes through the point $$(4, a, b) ,$$ what is the value of $$a+b+k?$$

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