Opuść nawiasy i zredakuj wyrazy podobne. 2x+(3x-4y) 2x-(3x+5y) (6x+3y)-(2x+4y) (x-5y)-(7x-4y) (4x+3y)-(-4x+5y)+(3x+6y)

2x+(3x-4y)=2x+3x-4y=5x-4y 2x-(3x+5y)=2x-3x-5y=-x-5y (6x+3y)-(2x+4y)=6x+3y-2x-4y=4x-y (x-5y)-(7x-4y)=x-5y-7x+4y=-6x-y (4x+3y)-(-4x+5y)+(3x+6y)=4x+3y+4x-5y+3x+6y=11x + 4y