Question

Resolva as equações com dominadores:
2x-1 - 3+x = x-4
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2 10 5​

Answer 1

$\frac{2x - 1}{2} - \frac{3 + x}{10} = \frac{x - 4}{5} \\ \frac{5(2x - 1) - 1(3 + x)}{10} = \frac{2(x - 4)}{10} \\ 10x - 5 - 3 - x = 2x - 8 \\ 10x - x - 2x = - 8 + 5 + 3 \\ 7x = 0 \\ x = \frac{0}{7} \\ x = 0$