5x-3/3-1=5x-3/12(/-дробная черта)

Решите задачу:

$\frac{5x - 3}{3 - 1} = 5x - \frac{3}{12} \\ \\ \frac{5x - 3}{2} = 5x - \frac{3}{12} \\ \\ 12 \times \frac{5x - 3}{2} = 12 \times 5x - 12 \times \frac{3}{12} \\ \\ 6(5x - 3) = 12 \times 5x - 12 \times \frac{3}{12} \\ \\ 6(5x - 3) = 60x - 12 \times \frac{3}{12} \\ \\ 6(5x - 3) = 60x - 3 \\ \\ 30x - 18 = 60x - 3 \\ 30x - 60x = - 3 + 18 \\ - 30x = 15 \div - 30 \\ x = - 0.5$