Question

rezolvati in Q ecuatia
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Answer 1

Răspuns:

$\frac{5 \times 3 + 2}{3} x - 12 = - 2.5 \\ \\ \frac{170x}{30} - \frac{360}{30} = - \frac{75}{30} \\ \\ 170x = 360 - 75 \\ \\ x = \frac{285}{170} \\ \\ x = \frac{57}{34}$