Question

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Answer 1

Answer:

$3x + 80 + x = 180 \\ 4x = 180 - 80 \\ 4x = 100$

the value of 4x = 100°

Step-by-step explanation:

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Answer 2

Answer:

x = 25

Step-by-step explanation:

3x+80degree+x = 180degree

4x= 180-80

4x=100degree

x=100/4

=25degree

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