September 2018 1 12 Report

Rozwiąż równanie:
a)\frac{2}{3}t + 4 = 2 - \frac{5}{2}t

b)\frac{3}{4}u - 1 = 2 + \frac{1}{3}u

c)\frac{5}{7}x + 3 - \frac{11}{21}x - 6 = 1
d) \frac{2}{5}x + 1\frac{1}{2}x - \frac{9}{10}x = (-1)^{1997}


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