Răspuns:
[tex]a = |x - 3| - |8 - x| \\ x + 3 + 8 + x = 0 \\ 2x + 11 = 0 \\ 2x = - 11 \\ x = - \frac{11}{2} [/tex]
[tex]a = | - \frac{11}{2} - \frac{3}{1} | - | \frac{8}{1} - ( - \frac{11}{2} ) | \\ a = \frac{11}{2} + \frac{3}{1} -| \frac{8}{1} + \frac{11}{2 } | \\ \frac{a}{1} = \frac{11}{2} + \frac{3}{1} + \frac{8}{1} + \frac{11}{2 } \\ \frac{2a}{2} = \frac{11}{2} + \frac{6}{2} + \frac{16}{2} + \frac{11}{2} \\ 2a = 11 + 6 + 16 + 11 \\ 2a = 44 \\ a = 44 \div 2 \\ a = 22[/tex]
