[tex] \frac{x - 1}{5} + \frac{x - 2}{3} = 2 - \frac{x - 2}{15} \: \: | \times 15 \\3 (x - 1) + 5(x - 2) = 30 - (x - 2) \\ 3x - 3 + 5x - 10 = 30 - x + 2 \\ 8x + x = 32 + 13 \\ 9x = 45 \\ x = 45 \div 9 \\ x = 5[/tex]

х-1/5+х-2/3=2-х-2/15

х=2,3+2+2/15=4.43333

х=4.43333+1,5=5,93333

2/15+2=2,13333

2,13333-1,13333=1

1+2,3+1,5=14,8

14,8-5,93333=8,86667

8,86667-1,86667=7

7-2,3=4,7

1(1+2)=1,3

4,7+1,3=6

6-1=5

5