Question

Упростите и решите:
-9x+7x-5x+2x=
-18n-12n+7.3n+6.5n=
23x-23+40+4x=
1/2a+1/3c-1/2a+2/3c=
5m-(3m+5)+(2m-4)=
(3x-11)*2-5*(4-3x)=
3(2x+8)-(5x+2)=
1/3(3x-6)-2/7(7x-21)=

Answer 1

Пошаговое объяснение:

-9x+7x-5x+2x= - 5x

-18n-12n+7.3n+6.5n= - 16.2n

23x-23+40+4x=27x+17

1/2a+1/3c-1/2a+2/3c=c

5m-(3m+5)+(2m-4)=5m-3m-5+2m-4=4m-5

(3x-11)*2-5*(4-3x)=6x-22-20+15x=21x-42

3(2x+8)-(5x+2)=6x+24-5x-2=x+22

1/3(3x-6)-2/7(7x-21)=x-2-2x+6= - x+4