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26-05-2021
Mathematics

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26-05-2021

The answer is A which is 30. :D

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26-05-2021

Answer:

30

Step-by-step explanation:

2x + x - 10 = 80

3x - 10 = 80

3x (- 10 + 10)= 80 + 10

3x = 90

3x/3 = 90/3

x = 30

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