jadadanielle2008
Answered

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Sagot :

jcherry99

Answer:

Step-by-step explanation:

The two angles are formed from 2 intersecting lines. The angles are called vertically opposite angles. They are equal

4x + 21 = 85                    Subtract 21

4x = 85 - 21                    Combine

4x = 64                           Divide by 4

x = 64/4

x = 16

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