Автор - valerapetrov2

Решите уравнение:
14 + 6.2x + 2.4x=69.9

Ответ

Автор - MrsRasta
14 + 6.2x + 2.4x=69.9
6.2x+2.4x=69.9-14
8.6x=55.9
x=55.9/8.6
x=5.6

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