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18-03-2021
Mathematics

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Аноним Аноним

18-03-2021

Answer:

x = 10

Step-by-step explanation:

7x - 3 + 12x - 7 = 180 because angles on a straight line add up to 180 degrees so we equate this to 180. Now we just simplify and solve to get x on one side! :)

19x - 10 = 180

19x = 190

x = 10

I hope this helps!!

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