12:[-4(5-3)-2(-23+21)]
1 answer:
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Answer:
3x -y = 6
Step-by-step explanation:
When the equation of a line is given in the form ax+by=c, the perpendicular line through point (h, k) will be ...
bx -ay = bh -ak
Here, we have a=1, b=3, h=1, k=-3, so the line is ...
3x -y = 3(1) -(1(-3))
3x -y = 6
