Ответ:
Пошаговое объяснение:
5/(3x+10) = 2/7
2*(3x + 10) = 7*5
6x + 20 = 35
6x = 35 - 20
6x = 15
x = 15:6
x = 2,5
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Verified answer
Ответ:
Пошаговое объяснение:
5/(3x+10) = 2/7
2*(3x + 10) = 7*5
6x + 20 = 35
6x = 35 - 20
6x = 15
x = 15:6
x = 2,5