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20 POINTS!!!!!!! For what value of x must the quadrilateral be a parallelogram? 5x X = 28 (3x+28) work: APR 12 !!! tv SA C

20 POINTS!!!!!!! For what value of x must the quadrilateral be a parallelogram? 5x X = 28 (3x+28) work: APR 12 !!! tv SA C
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5 votes
20 POINTS!!!!!!!

For what value of x must the quadrilateral be a parallelogram?
5x
X =
28
(3x+28)
work:
APR
12
!!!
tv
SA
C

20 POINTS!!!!!!! For what value of x must the quadrilateral be a parallelogram? 5x-example-1
User Rinzwind
by
8.2k points

1 Answer

1 vote
5x=3x+28
2x=28
x=14
Subtract the 3x from both sides to get the x on one side, then divide the rest by 2. Both the angles are the same and will equal eachother.
User BrettAHale
by
8.5k points
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