Question

calcule o X equacional ​

Answer 1

M.M.C ( Minimo Múltiplo Comum )

M.M.C

5, 2 |5 ×

1, 2 |2

1, 1 |1

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$\sf \: 5 \times 2 \times 1 \\ \sf \: 10 \times 1 \\ \sf \: 10$

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$\sf \: \frac{2x}{5} + \frac{1}{2} = 0 \\ \\ \sf \: 10\Bigg( \frac{2x}{5} + \frac{1}{2} \Bigg) = 10 \times 0 \\ \\ \sf \: 10 \times \frac{2x}{5} + 10 \times \frac{1}{2} = 10 \times 0 \\ \\ \sf \: 10 \times \frac{2x}{5} + 10 \times \frac{1}{2} = 0 \\ \\ \sf \: 2 \times 2x + 10 \times \frac{1}{2} = 0 \\ \\ \sf \: 2 \times 2x + 5 = 0 \\ \\ \sf \: 4x + 5 = 0 \\ \\ \sf \: 4x =- 5 \\ \\ \sf \: x = - \frac{5}{4}$

Att: Nerd1990