August 2018 1 21 Report
Wykonaj działania.
a) a + (a - b)
b) 2x - (x + 4)
c) 7 - ( -x + 6)
d)-(x + 4) + (x - 5)
e) 1 - (t + p) - (t - 2)
f)-(-y + 2) + (-2y - 4)

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