-(2x+3y)-(2x+3y)-(-3y+2x)= 3 (a+4b-6c)-(4a+5b+4c)= 3(2x-3y)-4(2x-3y)=
-(2x+3y)-(2x+3y)-(-3y+2x)= 3 (a+4b-6c)-(4a+5b+4c)= 3(2x-3y)-4(2x-3y)=
Odpowiedź
-(2x+3y)-(2x+3y)-(-3y+2x)= -2x-3y-2x-3y+3y-2x=-6x-3y 3 (a+4b-6c)-(4a+5b+4c)= 3a+12b-18c-4a-5b-4c=-a+7b-22c 3(2x-3y)-4(2x-3y)= 6x-9y-8x+12y=-2x+3y
-(2x+3y)-(2x+3y)-(-3y+2x) = -2x-3y-2x-3y+3y-2x = -6x-3y 3(a+4b-6c)-(4a+5b+4c) = 3a+12b-18c-4a-5b-4c = -a+7b-22c 3(2x-3y)-4(2x-3y) = 6x-9y-8x+12y = -2x+3y
... -(2x+3y)-(2x+3y)-(-3y+2x)= -2x-3y-2x-3y+3y-2x=-6x-3y ... 3(a+4b-6c)-(4a+5b+4c)= 3a+12b-18c_4a-5b-4c=-a+7b-22c ... 3(2x-3y)-4(2x-3y)= 6x-9y-8x+12y=_2x+3y
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