Resposta :
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[tex] \frac{2}{3} x - \frac{3}{5} = 1 \\ \\ 15( \frac{2}{3} x - \frac{3}{5} ) = 15 \times 1 \\ \\ 15( \frac{2}{3} x - \frac{3}{5} ) = 15 \\ \\ 15 \times \frac{2}{3} x - 15 \times \frac{3}{5} = 15 \\ \\ 5 \times 2x - 15 \times \frac{3}{5} = 15 \\ \\ 5 \times 2x - 3 \times 3 = 15 \\ \\ 10x - 3 \times 3 = 15 \\ \\ 10x - 9 = 15 \\ \\ 10x = 15 + 9 \\ \\ 10x = 24 \\ \\ 10x \div 10 = 24 \div 10 \\ \\ x = 24 \div 10 \\ \\ x = \frac{24}{10} \\ \\ x = \frac{12}{5} [/tex]
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