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Svetradugi [14.3K]
2 years ago
10

Help on this please.

Mathematics
1 answer:
fomenos2 years ago
8 0

Answer:

21

Step-by-step explanation:

Since this is a parallelogram, the given angle measure must have equal measure because they are opposite angles:

2x - 4 = x + 17 transfer like terms to the same side of the equation

2x - x = 17 + 4 (notice the terms changes sign when transferring to the other side of the equation)

x = 21 is the answer we are looking for

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