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МатематикаВопрос:
1) 2x + 6x + 15 = 175, 8x + 15 = 175, 8x = 175 - 15, 8x = 160, x = 160 : 8, x = 20.
Ответ:
Решим уравнение:
2x + 6x + 15 = 175
8x + 15 = 175
8x = 175 - 15
8x = 160
x = 160 : 8
x = 20
Ответ: 20
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