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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a)15a
b)25x
c)3k
d)11m
e)8z
f)13n
g)5x+7
h)1x
i)8u+1 :)
15a
25x
3k
11m
8z
13n
5x + 7
1x lub x (zapis obojętny)
8u +1