Odpowiedź:
[tex] a) |x| = 2 \\ 1)x = 2 \\ 2)x = - 2 \\ b) \: | - x + 5| = 3 \\ 1) - x + 5 = 3 \\ - x = - 2 \\ x = 2 \\ 2) - x + 5 = - 3 \\ - x = - 8 \\ x = 8 \\ c)3 |2x - 5| + 6 = 12 \\ 3 |2x - 5 | = 6 | \div 3 \\ |2x - 5| = 2 \\ 1)2x - 5 = 2 \\ 2x = 7 | \div 2 \\ x = \frac{7}{2} \\ 2)2x - 5 = - 2 \\ 2x = 3 | \div 2 \\ x = \frac{3}{2} [/tex]
