NetOnlyOneviz
Rozwiązane

2a +6y+3a-18y+12 =

5a+4-2a+6+4a-8

8-5a+6b+4a-6-b =

(8x+3y-4) +(6x-8+5y) =

(8a- 3b+12) – (7a-4b+9) =

Odpowiedź :

SoeCruviz

2a +6y+3a-18y+12 =2a+3a+6y-18y+12=5a-12y+12

5a+4-2a+6+4a-8=5a-2a+4a+4+6-8=7a+2

8-5a+6b+4a-6-b =-5a+4a+6b-b+8-6=-a+5b+2

(8x+3y-4) +(6x-8+5y) =8x+3y-4+6x-8+5y=8x+6x+3y+5y-4-8=14x+8y-12

(8a- 3b+12) – (7a-4b+9) =8a-3b+12-7a+4b-9=8a-7a-3b+4b+12-9=a+b+3