Решение и ответ:
10 - 2 · (7 - x) = 15
2 · (7 - x) = 10 - 15
2 · (7 - x) = -5
7 - x = -5 : 2
7 - x = -2.5
x = 7 + 2.5
x = 9.5
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Answers & Comments
Решение и ответ:
10 - 2 · (7 - x) = 15
2 · (7 - x) = 10 - 15
2 · (7 - x) = -5
7 - x = -5 : 2
7 - x = -2.5
x = 7 + 2.5
x = 9.5