Question

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х=?
помогите умаляю​

Answer 1

Ответ:

$(2 \times \frac{1}{4} + 5.25) - ( - x) = 9.5 \\ ( \frac{9}{4} + \frac{21}{4} ) + x = 9.5 \\ \frac{15}{2} + x = 9.5 \\ x = 9.5 - \frac{15}{2} \\ x = \frac{19}{2} - \frac{15}{2} = \frac{19 - 15}{2} = \frac{4}{2} = 2$

Ответ: 2