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8x - 3x + 4x = 9x
4k + a + k + 9a= 10a + 5k
9m + 6m - m - n = 14m - n
Mam nadzieję, że pomogłam :)
8x- 3x + 4x= 9x
4k + a + k + 9a= 5k + 10a
9m + 6m - m - n= 14m- n