1. (2x-3y)+(4y-5x)=
2. (4y-5x)-(2x+xkwadrat =
3.(4xkwadrat-2xkwadrat)-(2x+x kwadrat=
4. -(3a+5ab+ab-3b-b=
5. (2x+x)-(-3x+6x-7=
6. (x+3)-(x-5) - 4=
7. (a-5)+(a-7)-(a+3)=
8. -(x-2)-(x+1)=
9. (x+3)-(x-2-5)=
10. -(1/2x+1/2y)-(x-y)=
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1. 2x - 3y + 4y - 5x = (-3x) +y
2. 4y - 5x - 2x - xkwadrat = 4y - 7x -xkwadrat
3. 4xkwadrat - 2xkwadrat - 2x - xkwadrat = xkwadrat - 2x
4. -3a - 5ab - ab + 3b + b = (-3a) - 6ab + 4b
5. 2x + x - (-3x) - 6x +7 = 7
6. x + 3 - x + 5 - 4 = 4
7. a - 5 + a + 7 - a - 3 = a - 1
8. (-x) + 2 - x - 1 = (-2x) + 1
9. x + 3 - x + 2 + 5 = 10
10. (-1/2x) - 1/2y - x + y = (-3/2x) + 1/2 y
mam nadzieje, ze dobrze :P