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½x = x-6 |*2
x = 2x - 12
12 = 2x-x
12 = x
x=12
x-5= jedna trzecia x + 1
x-5 = ⅓x + 1 |*3
3x-15 = x+3
3x-x=3+15
2x=18
x=9
x czwartych-jedna czwarta=2
x/4 - ¼ = 2 |*4
x-1 = 8
x=8+1
x=9
x piątych - 3= x+ jedna piąta
x/5 -3 =x + ⅕ |*5
x-15 = 15x+1
x+15x = 1+15
16x = 16
x=1
pięć szóstych (x-1) = 4
⅚(x-1) = 4 |*6
5(x-1) = 24
5x-5 = 24
5x = 24+5
5x = 29
x=5,8
- jedna druga (-x - 6) = -x
-½(-x-6) = -x |*2
-1(-x-6) = -2x
x+6 = -2x
x+2x = -6
3x = -6
x=-2
i to drugie:
2x+3 piątych = 2-x trzecich - x
2x+⅗ = 2-x/3 - x |*15
30x+9 = 30-5x- 15x
30x+5x+15x = 30-9
50x = 21
x=0,42
Reszta podobnie. :P