Question

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Answer 1

x = 30

Explanation:

The given angles are vertical and congruent , then

3x + 50 = 140 ( subtract 50 from both sides )

3x = 90 ( divide both sides by 3 )

x = 30

Answer 2

x= 30

Explanation:

3x + 50 = 140

3x = 140 -50

3x = 90

x = 90/3

x = 30