2 years ago

Find the value of x. 6 14 8 0 21 x = [ ? ] 3x-12

1 answer:

4 0

Answer: 7

Step-by-step explanation:

By the angle bisector theorem,

$\frac{21}{14}=\frac{3x-12}{6}\\21(6)=14(3x-12)\\126=14(3x-12)\\9=3x-12\\21=3x\\x=\boxed{7}$

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