Rozwiąż i sprawdź:
a) 8x + 5 = 7x
b) 7n +2 = 6n - 3
c) -x + 25 = 2x - 2
d) -9z - 7 = -z - 6
e) 25m -3 = 24m - 4
f) -s + 15 = 4s - 14
g) 17y + 28 = 19y +27
h)8k - 19 = -8k + 19
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