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Ttmt asked Jan 24, 2023

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38 votes

I really don’t understand

Mathematics
high-school

Ttmt asked Jan 24, 2023

by Ttmt

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26 votes

Answer:

x=5

Explanation:

The exterior angle of a triangle theorem states the angles V and U (in the diagram) will equal angle UTK.

40°+12x=21x-5

Now we just solve like a regular equation

40+5=21x-12x

45°=9x

45°÷9=9x÷9

5=×

Mike Warren answered Jan 30, 2023

by Mike Warren

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