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Contact [7]
3 years ago
6

Find the value of a.

Mathematics
2 answers:
Nataly_w [17]3 years ago
6 0
Answer: See below

Explanation:

6a + 11 = 2a + 83
6a - 2a = 83 - 11
4a = 72
a = 72/4
a = 18
Anna [14]3 years ago
6 0
  • Answer:

<em>a = 18°</em>

  • Step-by-step explanation:

<em>we have opposite angles => </em>

<em>=> 6a + 11 = 2a + 83</em>

<em>6a - 2a = 83 - 11</em>

<em>4a = 72</em>

<em>a = 72 : 4</em>

<em>a = 18°</em>

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