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12-08-2021
Mathematics

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ZA and ZB are vertical angles. If m_A = (7x– 20)° and m_B = (6x – 1)º,
then find the measure of ZA.

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Аноним Аноним

12-08-2021

[tex]\\ \sf\longmapsto 7x-20=6x-1[/tex]

[tex]\\ \sf\longmapsto 7x-6x=-1+20[/tex]

[tex]\\ \sf\longmapsto x=-19[/tex]

Now

[tex]\\ \sf\longmapsto m<A=7x-20=7(-19)-20=133-20=113[/tex]

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