leo4687
18.11.2020 •
Mathematics
X = [?]
3x + 18 4x + 15
Hint: When angles form a linear pair, their sum is 180.
3x + 18 + 4x + 15 = 180
![X = [?]
3x + 18 4x + 15
Hint: When angles form a linear pair, their sum is 180.
3x + 18 + 4x + 15](/tpl/images/1933/5820/56507.jpg)
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Ответ:
Explanation:
3x + 18 + 4x + 15 = 180
7x + 33 = 180
7x = 180 - 33
7x = 147
x = 21
Ответ: