Zapisz w jak najprostszej postaci ( postaraj sie policzyc w pamięci ) x+x= x+3x= 3/4x+x= x+ 0,5x= 1,2x+x= 5x-x= 3x-0,5x= 5x- 2/5x =
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x+x= 2x
x+3x=4x
3/4x+x=1¾x
x+ 0,5x=1,5x
1,2x+x=2,2x
5x-x=4x
3x-0,5x=2,5x
5x- 2/5x =4⅗x