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7nadin3 [17]
3 years ago
7

Find the value of x which ABCD must be a parallellogram? x =

Mathematics
1 answer:
aev [14]3 years ago
3 0
If\ ABCD\ is\ a\ parallelogram,\ then\\\\2x-1=x+3\ \ \ |add\ 1\ to\ both\ sides\\\\2x=x+4\ \ \ \ |subtract\ x\ from\ both\ sides\\\\\boxed{x=4}
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