October 2018 2 9 Report

Zapisz jak najkrócej.

1.

a) 10a + 5a = .....a

b) 8x + 17x = ......x

c) 8k - 5k = ......k

d) 12m - m = 11...

e) 7z + z = .....z

f) 14n - n = ....n

g) 3x + 2x + 7 = ....x + 7

h) 6x - 5x = ......x

i) 5u + 3u + 1 = ....u + ....


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