What is the value of x?
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Answer:
x = 27
Step-by-step explanation:
The given angles are vertical angles and congruent, thus
5(x - 4) = 4x + 7, that is
5x - 20 = 4x + 7 ( subtract 4x from both sides )
x - 20 = 7 ( add 20 to both sides )
x = 27