Tìm x biết \(\begin{array}{l} - 1,25 + \frac{2}{{15}} - x = 2 \end{array}\)
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Lời giải:
Báo sai\(\begin{array}{l} - 1,25 + \frac{2}{{15}} - x = 2\\ \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,x = - 1,25 + \frac{2}{{15}} - 2\\ \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,x = - 3 - \frac{1}{4} + \frac{2}{{15}}\\ \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,x = - 3 - \frac{7}{{60}}\\ \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,x = - 3\frac{7}{{60}} \end{array}\)
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