5a+(3a+7b-1)=
(5x-10y-3)+5y=
(4b-2a)+(13b+18)-20=
17a-(2b-3a)=
25x-(4x+18y-9)
(2xy-3x-2)-(4xy-3x+1)=
5a+3a+7b-1=8a+7b-1
5x-10y-3+5y=5x-5y-3
4b-2a+13b+18-20=17b-2a-2
17a-2b+3a=20a-2b
25x-4x-18y+9=21x-18y+9
2xy-3x-2-4xy+3x-1=-2xy-3
Najpierw trzeba opóścić nawiasy .
5a+3a+7b-1= 8a+7b-1
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5a+3a+7b-1=8a+7b-1
5x-10y-3+5y=5x-5y-3
4b-2a+13b+18-20=17b-2a-2
17a-2b+3a=20a-2b
25x-4x-18y+9=21x-18y+9
2xy-3x-2-4xy+3x-1=-2xy-3
Najpierw trzeba opóścić nawiasy .
5a+3a+7b-1= 8a+7b-1
5x-10y-3+5y=5x-5y-3
4b-2a+13b+18-20=17b-2a-2
17a-2b+3a=20a-2b
25x-4x-18y+9=21x-18y+9
2xy-3x-2-4xy+3x-1=-2xy-3