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What is this .....................
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Nov 12, 2019
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What is this .....................
Mathematics
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Anschoewe
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Try this solution:
according to the condition ∠1+∠2=180, it means that
74-x+86-2x=180, ⇒ x= -20/3
answer: -20/3
Pnina
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Nov 16, 2019
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