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kakasveta [241]
3 years ago
10

What is the value of x 21, 18, 10 or 29?

Mathematics
2 answers:
Hitman42 [59]3 years ago
8 0
18. Set the the two equations equal and solve.
Lerok [7]3 years ago
8 0
7x + 11 = 10x - 43
7x - 10x = -43-11
-3x = -54
x = 18
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2 years ago
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Answer:

44

Step-by-step explanation:

The two base angles cannot both be 92 degrees because they would add up to 184 which is more degrees than any triangle has. The apex angle (the top angle) therefore has 92 degrees.

The base angles are equal and found as follows.

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