-2+3a-(-3a)=
4b-15-6b+3=
-5x+34-7x-6=


Odpowiedź :

Odpowiedź:

[tex]-2+3a-(-3a)=-2+3a+3a=-2+6a=6a-2[/tex]

[tex]4b-15-6b+3=-2b-12[/tex]

[tex]-5x+34-7x-6=-12x+28[/tex]

-2+3a-(-3a)=-2+3a+3a=6a-2

4b-15-6b+3=4b-6b-15+3=-2b-12

-5x+34-7x-6=-5x-7x+34-6=-12x+28