Sprowadz do najprostszej postaci :
5x+(2x-7)=
-5x-(2x-7)=
3x(x-3)=
-3x(-4x-5y)=
-2a+b-a-2b+3a=
4x-2z+3y+4z-9x-2y-y=
2,5x-8+3x+6-0,5x=
6(a+2b)-3(2a-3b)=
4a(b+3)+(a-ab)=
6xy(3+z)-4y(2xz+4)+2y(8+xz)=
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5x+(2x-7)=5x+2x-7=7x-7
-5x-(2x-7)=-5x-2x+7=-7x+7
3x(x-3)=3x²-9x
-3x(-4x-5y)=12x+15xy
-2a+b-a-2b+3a=-b
4x-2z+3y+4z-9x-2y-y=-5x+2z
2,5x-8+3x+6-0,5x=5x-2
6(a+2b)-3(2a-3b)=6a+12b-6a+9b=21b
4a(b+3)+(a-ab)=4ab+12+a+ab=5ab+a+12
6xy(3+z)-4y(2xz+4)+2y(8+xz)=18xy+6xzy-8xzy-16y+16y+2xzy=18xy